Journals

ARIMA

[Revue africaine de recherche en informatique et mathématiques appliquées]

ARIMA

Revue africaine de recherche en informatique et mathématiques appliquées

The Revue africaine de recherche en informatique et mathématiques appliquées (ARIMA) was born in 2002 from a North/South scientific collaboration carried out in the wake of the activities of the African Colloquium for Research in Computer Science and Applied Mathematics (Colloque africain pour la recherche en informatique et mathématiques appliquées, CARI). The journal publishes the research results of these collaborations in French and English on an ongoing basis.

Director of publication: Maurice Tchuenté
Editor-in-chief: Nabil Gmati ; Mathieu Roche ; Maurice Tchuenté ; Bruce Watson
Medium: electronic
Frequency: continuous
Date created: 2002
Date of publication on Episciences: 2016
eISSN: 1638-5713
Subjects: Computer Science and Applied Mathematics
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: African Society in Digital Science
- Address: Department of Mathematics and Computer Science, Faculty of Science, University of Dschang, P.O. Box 96 Dschang
- Country: Cameroon
Contact: arima AT episciences.org

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Latest articles

Vers une plateforme sémantique pour l'apprentissage adaptatif et collaboratif en ligne

Dans le monde de la formation en ligne, les systèmes d'apprentissage ont cherché à proposer un contenu adapté à tout utilisateur selon son profil.Cette adaptation a comme objectif général de permettre à l'apprenant de tirer le meilleur parti du contenu exposé des ressources d'apprentissage.Cependant, du point de vue de la collaboration entre apprenants selon l'adaptation au profil des apprenants, cette adaptation n'a pas été suffisamment explorée comme un aspect important du processus d'apprentissage en ligne.L'adaptation va permettre de grouper des utilisateurs de profil similaire ou très proche pour apprendre en harmonie tout en gardant la motivation et l'engagement nécessaire afin d'augmenter le taux de réussite des apprenants. Cet état de fait doit permettre aussi de réutiliser certains parcours d'apprentissage avec de bons taux de réussite pour de futures recommandations aux utilisateurs ayant le même profil. Dans cet article, nous mettons l'accent sur cet aspect et proposons un système d'apprentissage qui recommande des parcours d'apprentissage adaptés au profil des utilisateurs et qui permet un apprentissage collaboratif des utilisateurs de façon synchrone. Après un tour d'horizon de l'existant dans le domaine de l'apprentissage adaptatif en ligne, nous proposerons une architecture pour le pilotage de ce type d'apprentissage adaptatif collaboratif. Cette solution est fondée sur des ontologies et orchestrée par un système multi-agents. Ce dernier est responsable du pilotage des parcours d'apprentissage, de la recommandation de parcours en mode collaboratif ou non par le biais d'une communication entre les différents agents intervenants et de la gestion des événements captés par le système.

Sabeima, Massra

January 10, 2023

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Amélioration de la visite de classe de l'enseignement technique : intégration d'un dispositif de médiation

L’amélioration des pratiques de l’enseignant est portée par la visite de classe effectuée par le conseil pédagogique. Cet article présente l’intégration d’un système de partage de document comme un dispositif de médiation dans la visite de classe. Ce système de partage permet d’améliorer les interactions entre l’enseignant et le conseil pédagogique sur l’élaboration des principaux documents pédagogiques relatif à la visite de classe. L’expérimentation a été réalisée avec le service de partage de documents Google Drive sur une population constituée d’une quinzaine d’enseignants et de trois encadreurs pédagogiques de l’enseignement technique. Les résultats ont montré une amélioration de la qualité pédagogique de la visite de classe et une amélioration de la communication entre l’enseignant et l’encadreur pédagogique. Il ressort de cette étude que l’enseignant devient moins stressé et il sollicite beaucoup plus le conseil pédagogique que lorsqu’il n’utilise pas ce dispositif.

Ouédraogo, Frédéric,

September 30, 2022

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CM

[Communications in Mathematics]

CM

Communications in Mathematics

Communications in Mathematics—created in 2009—is the continuation of the journal Acta Mathematica et Informatica Universitatis Ostraviensis, founded in 1993, which became Acta Mathematica Universitatis Ostraviensis in 2003. Communications in Mathematics publishes research and review articles in English in all areas of pure and applied mathematics, mathematical physics and computer science.

Director of publication: Jan Lata
Editor-in-chief: Ivan Kaygorodov
Medium: electronic
Frequency: annual
Date created: 2009
Date of publication on Episciences: 2021
eISSN: 2336-1298
Subjects: mathematics
Languages of publication: English

Review process: single blind peer review
CC BY-SA 4.0 licence

Publisher: University of Ostrava
- Address: Dvořákova 7, 701 03 Ostrava
- Country: Czech Republic
Contact: cm AT episciences.org

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Latest articles

Minkowski's successive minima in convex and discrete geometry

In this short survey we want to present some of the impact of Minkowski's successive minima within Convex and Discrete Geometry. Originally related to the volume of an $o$-symmetric convex body, we point out relations of the successive minima to other functionals, as e.g., the lattice point enumerator or the intrinsic volumes and we present some old and new conjectures about them. Additionally, we discuss an application of successive minima to a version of Siegel's lemma.

Aliev, Iskander

May 18, 2023

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On triviality of uniform Diophantine exponents of lattices

In this paper we prove that uniform Diophantine exponents of lattices attain only trivial values.

German, Oleg N.

May 12, 2023

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CST

[Les Cahiers Scientifiques du Transport]

CST

Les Cahiers Scientifiques du Transport

Created in 1979, the Cahiers Scientifiques du Transport/Scientific Papers in Transportation publishes biannual varia or thematic issues of articles on the field of transport, mobility and logistics. Supported by the French Association of Transport and Logistics Institutes (AFITL), the journal highlights the disciplinary diversity of the contributions.

Director of publication: Antoine Frémont
Editor-in-chief: Laurent Carnis
Medium: electronic
Frequency: biannual
Date created: 1979
Date of publication on Episciences: 2022
eISSN: 1150-8809
Subjects: development, engineering, management sciences, political science, urbanism
Language of publication: French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Association française des instituts de transport et de logistique (AFITL)
- Address: MSH Lyon Saint-Étienne, 14 avenue Berthelot, 69363 Lyon Cedex 07
- Country: France
Contact: cst AT episciences.org

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Latest articles

Dispositifs gouvernementaux visant la réduction des émissions CO2 dans le transport de fret : quels impacts sur les PME ?

Cet article explore le comportement des petites et moyennes entreprises (PME) suite aux dispositifs obligatoires et volontaires mis en place par le gouvernement français pour réduire les émissions de CO2 générées par le transport de marchandises. Grâce à des entretiens semi-directifs réalisés auprès de quatorze entreprises réparties sur le territoire français (cinq chargeurs, huit transporteurs et un consultant), nous examinons la prise en compte du développement durable dans les pratiques organisationnelles et décisionnelles des PME depuis l’apparition de ces dispositifs. Notre étude qualitative suggère que les implications environnementales actives découlent principalement de la dynamique interne de l'entreprise, pilotée par sa direction, ainsi que des attentes des clients finaux. Ce sont les démarches volontaires qui semblent séduire davantage les PME par rapport aux dispositifs obligatoires mis en place depuis 2013. Nous identifions une forte proactivité environnementale des transporteurs interrogés, quelle que soit leur taille. Notre travail apporte également un éclairage sur les techniques qui permettraient d’accroître l’efficacité et l’adoption des dispositifs gouvernementaux, notamment via une utilisation croissante de la télématique embarquée.

Touratier-Muller, Nathalie

April 18, 2023

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DMTCS

[Discrete Mathematics & Theoretical Computer Science]

DMTCS

Discrete Mathematics & Theoretical Computer Science

Discrete Mathematics & Theoretical Computer Science (DMTCS) is a peer-reviewed journal created in 1997. As a member of the DMTCS Association, it publishes research articles in English in the fields of discrete mathematics and theoretical computer science, especially at the intersection of these two disciplines.

Director of publication: Jens Gustedt
Editors-in-chief: Jørgen Bang-Jensen ; Michael Drmota ; Isabelle Guérin Lassous; Jens Gustedt ; Mihyun Kang ; Anca Muscholl ; Hadas Shachnai
Medium: electronic
Frequency: continuous
Date created: 1997
Date of publication on Episciences: 2016
eISSN: 1365-8050
Subjects: mathematics, computer science
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Association DMTCS
- Address: c/o Jens Gustedt, 67A avenue Jean-Jaurès, 67100 Strasbourg
- Country: France
Contact: dmtcs AT episciences.org

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Latest articles

Several Roman domination graph invariants on Kneser graphs

This paper considers the following three Roman domination graph invariants on Kneser graphs: Roman domination, total Roman domination, and signed Roman domination. For Kneser graph $K_{n,k}$, we present exact values for Roman domination number $\gamma_{R}(K_{n,k})$ and total Roman domination number $\gamma_{tR}(K_{n,k})$ proving that for $n\geqslant k(k+1)$, $\gamma_{R}(K_{n,k}) =\gamma_{tR}(K_{n,k}) = 2(k+1)$. For signed Roman domination number $\gamma_{sR}(K_{n,k})$, the new lower and upper bounds for $K_{n,2}$ are provided: we prove that for $n\geqslant 12$, the lower bound is equal to 2, while the upper bound depends on the parity of $n$ and is equal to 3 if $n$ is odd, and equal to $5$ if $n$ is even. For graphs of smaller dimensions, exact values are found by applying exact methods from literature.

Zec, Tatjana

May 26, 2023

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Rainbow vertex pair-pancyclicity of strongly edge-colored graphs

An edge-colored graph is \emph{rainbow }if no two edges of the graph have the same color. An edge-colored graph $G^c$ is called \emph{properly colored} if every two adjacent edges of $G^c$ receive distinct colors in $G^c$. A \emph{strongly edge-colored} graph is a proper edge-colored graph such that every path of length $3$ is rainbow. We call an edge-colored graph $G^c$ \emph{rainbow vertex pair-pancyclic} if any two vertices in $G^c$ are contained in a rainbow cycle of length $\ell$ for each $\ell$ with $3 \leq \ell \leq n$. In this paper, we show that every strongly edge-colored graph $G^c$ of order $n$ with minimum degree $\delta \geq \frac{2n}{3}+1$ is rainbow vertex pair-pancyclicity.

Zhao, Peixue

May 16, 2023

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Environment

EID

[Environnement, Ingénierie & Développement]

EID

Environnement, Ingénierie & Développement

Launched in 2021, Environnement, Ingénierie & Développement (EID) is an evolution of the journal Déchets Sciences & Techniques created in 1996. Supported by INSA Lyon, EID welcomes research articles and feedback, in French or English, in the fields of industrial and urban environment, circular economy and territorial industrial ecology.

Director of publication: Frédéric Fotiadu
Editors-in-chief: Rémy Gourdon ; Mathieu Gautier
Medium: electronic
Frequency: three issues per year
Date created: 1996
Date of publication on Episciences: 2021
eISSN: 2778-844X
Subject: environment engineering
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: INSA de Lyon
- Address: 20 avenue Albert Einstein, 69621 Villeurbanne cedex
- Country: France
Contact: eid AT episciences.org

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Latest articles

Méthode de quantification des flux des mines urbaines : cas des briques en terre cuite en Ile de France

Le secteur du bâtiment est un grand consommateur de ressources et producteur de déchets. Dans un contexte d’épuisement des ressources, on peut imaginer qu’il devra mettre en place des stratégies pour devenir davantage circulaire. Une solution possible est d’avoir recours aux mines urbaines, c’est-à-dire, de voir les bâtiments existants comme un gisement de ressources disponibles pour les futurs constructions ou rénovations du parc immobilier lors de leur déconstruction ou rénovation. Cet article propose une méthode pour mettre en relation des quantités de matériaux issus de la déconstruction et de la rénovation avec les besoins du secteur du bâtiment neuf ou de la rénovation. Après leur extraction des mines urbaines, les éléments de construction peuvent convenir à divers usages secondaires. Les usages possibles en sortie des filières de réemploi, réutilisation et de recyclage sont identifiés et les quantités de matériaux répondant à chacun de ceux-ci sont déterminés avec des unités adéquates (m2, kg…). Ces unités facilitent la comparaison entre les matériaux valorisés et la demande. La méthode se veut prospective en considérant comme hypothèse que l’économie circulaire est pleinement développée et que l’accent n’est mis que sur la faisabilité technique des modes de valorisation. Afin d’illustrer la méthode, le cas des briques en terre cuite en Ile-de-France est développé. Durant l’année 2020, 153 kt de briques en terre cuite ont été produites par la démolition de bâtiments sur ce territoire, permettant d’obtenir au maximum (et sous réserve d’une bonne qualité de tri et des matériaux déconstruits), une surface de plus de 21 000 m2 de parois en briques de maçonnerie, par exemple, et 9,2 kt de granulats destinés à la fabrication de béton.

Clavier, Sarah

March 28, 2023

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Variabilité spatiale de la qualité des eaux agricoles d’un bassin versant de deux arrondissements d’Antananarivo (Madagascar)

Contexte : L’analyse spatiale de la qualité des eaux a été réalisée dans la zone agricole située dans un bas-fond d’un bassin versant de Tana 2 et Tana 4 – Madagascar. Objectif : Elle vise à déterminer la nature des eaux agricoles et la variabilité spatiale de leur alcalinité, leur salinité et leur teneur en matière organique. Méthodes : La zone agricole a été subdivisée en trois parcelles P1, P2 et P3 selon le type de sol. Des échantillons d’eaux prélevés sur les 43 points géo référencés de cette zone ont été soumis aux mesures de pH, Conductivité Électrique (CE) et Demande Chimique en Oxygène (DCO). La distribution spatiale de ces paramètres a été établie par interpolation des valeurs de ces indicateurs en utilisant v.kriging du logiciel GRASS GIS. Résultats et discussion : Les eaux des parcelles P2 présentent une forte alcalinité. Celles de la parcelle P3 sont très riches en sels dissous et en matières organiques. La distribution spatiale de l’alcalinité et la salinité suit un modèle linéaire, tandis qu’un modèle exponentiel caractérise la répartition de la matière organique.

Rakoto, Nelly Ghislaine

March 22, 2023

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ENTICS

[Electronic Notes in Theoretical Informatics and Computer Science]

ENTICS

Electronic Notes in Theoretical Informatics and Computer Science

ENTICS—Electronic Notes in Theoretical Informatics and Computer Science—publishes proceedings of conferences and workshops in English that include significant theoretical advances in computer science and theoretical informatics.

Director of publication: Bruno Sportisse
Editor-in-chief: Michael Mislove
Medium: electronic
Frequency: continuous
Date created: 2022
Date of publication on Episciences: 2023
eISSN: 2969-2431
Subjects: computer science, theoretical informatics
Language of publication: English
Review process: single blind peer review
CC BY 4.0 licence
Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt – B.P. 105 78153 Le Chesnay Cedex
- Country: France
Contact: entics AT episciences.org

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Latest articles

The sheaf representation of residuated lattices

The residuated lattices form one of the most important algebras of fuzzy logics and have been heavily studied by people from various different points of view. Sheaf presentations provide a topological approach to many algebraic structures. In this paper, we study the topological properties of prime spectrum of residuated lattices, and then construct a sheaf space to obtain a sheaf representation for each residuated lattice.

Zhang, Huarong

March 21, 2023

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A Hofmann-Mislove theorem for $c$-well-filtered spaces

The Hofmann-Mislove theorem states that in a sober space, the nonempty Scott open filters of its open set lattice correspond bijectively to its compacts saturated sets. In this paper, the concept of $c$-well-filtered spaces is introduced. We show that a retract of a $c$-well-filtered space is $c$-well-filtered and a locally Lindel\"{o}f and $c$-well-filtered $P$-space is countably sober. In particular, we obtain a Hofmann-Mislove theorem for $c$-well-filtered spaces.

Zhang, Liping

March 21, 2023

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EpiDEMES

[Épijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur]

EpiDEMES

Épijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur

Epijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur (EpiDEMES) is a peer-reviewed journal founded in 2019 that publishes articles in French or English. EpiDEMES aims to build a documentary base for the initial and continuing education of teachers in higher education. The fields covered are didactics and epistemology of mathematics (AMS 97-XX Mathematics Education classification) with the object of study being mathematics in higher education and the phenomena linked to its teaching-learning.

Director of publication: pending
Editors-in-chief: Nicolas Grenier-Boley ; Hussein Sabra
Medium: electronic
Frequency: biannual
Date created: 2019
Date of publication on Episciences: 2019
eISSN: pending
Subjects: mathematics, didactics of mathematics
Languages of publication: English, French

Review process: single blind peer review
CC BY-SA 4.0 licence

Country: France
Contact: epidemes AT episciences.org

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Latest articles

Analyzing today geometry on architectural heritage between mathematics and representation to define architect's background

Nous présentons et analysons un exemple d'activité visant à initier au langage graphique codé des étudiants de première année de licence en architecture. Notre exemple concerne la représentation 2D d'un objet architectural, une compétence essentielle dans le métier d'architecte, et traite spécifiquement des systèmes de couverture constitués de voûtes générées par des cylindres et par leurs intersections. Il s'agit d'une première tentative de créer des activités qui impliquent tous les élèves, quels que soient leurs différents niveaux de compréhension géométrique et de familiarité avec le langage graphique ; en particulier, l'exemple présenté exploite l'introduction de modèles physiques ou virtuels pour soutenir la pensée mathématique des élèves dans la réalisation de la tâche et se déroule pendant le temps normal de cours, sans modifier ni ajouter le contenu mathématique établi dans les programmes d'études. La littérature de recherche sur la modélisation mathématique, en particulier celle dite prescriptive, nous fournit les outils pour cadrer et mettre en œuvre notre étude; il permet également de présenter la modélisation mathématique comme un objectif dans un contexte éducatif extra-mathématique.

Cumino, Caterina

April 05, 2023

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Students using programming for pure and applied mathematics investigations

Dans cet article, nous présentons notre recherche sur les étudiants de premier cycle en mathématiques apprenant à utiliser la programmation pour des projets d'investigation en mathématiques. Plus précisément, nous nous concentrons sur la façon dont une certaine perspective théorique (l'Approche instrumentale) nous aide à mieux comprendre cette activité de l’étudiant. S’appuyant sur des données des expériences d’étudiants et d’instructeurs dans une séquence de cours (offerts depuis 2001), nos résultats décrivent comment l'activité de l’étudiant est organisée (par le biais de «façons de faire» stables), et met en évidence la complexité de cette activité (comme un réseau entrelacé de « manières de faire » impliquant une combinaison de compétences en mathématiques et en programmation). Nous terminons par quelques recommandations concrètes pour les instructeurs.

Buteau, Chantal

March 30, 2023

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Epiga

[Épijournal de Géométrie Algébrique]

Epiga

Épijournal de Géométrie Algébrique

Epijournal de Géométrie Algébrique (Epiga) is a peer-reviewed mathematics journal created in 2016. Supported by the Epiga Association, it publishes articles annually in French or in English. The fields covered are algebraic geometry in the broadest sense, including complex and arithmetic geometry, algebraic group theory and representations.

Director of publication: Pierre-Emmanuel Chaput
Coordinating editor: Stéphane Druel
Medium: electronic
Frequency: annual
Date created: 2016
Date of publication on Episciences: 2016
eISSN: 2491-6765
Subjects: mathematics, algebraic geometry
Languages of publication: English, French

Review process: single blind peer review
CC BY-SA 4.0 licence

Publisher: Association Épiga
- Address: Institut Elie Cartan de Lorraine, Université de Lorraine, BP 70239, 54506 Vandœuvre-lès-Nancy Cedex
- Country: France
Contact: epiga AT episciences.org

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Latest articles

Affine Subspace Concentration Conditions

We define a new notion of affine subspace concentration conditions for lattice polytopes, and prove that they hold for smooth and reflexive polytopes with barycenter at the origin. Our proof involves considering the slope stability of the canonical extension of the tangent bundle by the trivial line bundle and with the extension class $c_1(\mathcal{T}_X)$ on Fano toric varieties.

Wu, Kuang-Yu

May 23, 2023

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Curve counting and S-duality

We work on a projective threefold $X$ which satisfies the Bogomolov-Gieseker conjecture of Bayer-Macr\`i-Toda, such as $\mathbb P^3$ or the quintic threefold. We prove certain moduli spaces of 2-dimensional torsion sheaves on $X$ are smooth bundles over Hilbert schemes of ideal sheaves of curves and points in $X$. When $X$ is Calabi-Yau this gives a simple wall crossing formula expressing curve counts (and so ultimately Gromov-Witten invariants) in terms of counts of D4-D2-D0 branes. These latter invariants are predicted to have modular properties which we discuss from the point of view of S-duality and Noether-Lefschetz theory.

Feyzbakhsh, Soheyla

May 12, 2023

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FI

[Fundamenta Informaticae]

FI

Fundamenta Informaticae

Fundamenta Informaticae, established in 1977, is a peer-reviewed scientific journal covering all areas of computer science, with main focus on theoretical foundations. The journal is published as Series IV of Annales Societatis Mathematicae Polonae, by the Polish Mathematical Society.

Director of publication: Prof. Jacek Miękisz
Editor-in-chief: Damian Niwiński
Medium: print and electronic
Frequency: 5-6 volumes per year
Date created: 1977
Date of publication on Episciences: 2020
eISSN: 1875-8681
Subjects: computer science
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Polish Mathematical Society
- Address: ul. Śniadeckich 8, 00-656 Warszawa
- Country: Poland
Contact: fi AT episciences.org

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Latest articles

Structural Liveness of Immediate Observation Petri Nets

We look in detail at the structural liveness problem (SLP) for subclasses of Petri nets, namely immediate observation nets (IO nets) and their generalized variant called branching immediate multi-observation nets (BIMO nets), that were recently introduced by Esparza, Raskin, and Weil-Kennedy. We show that SLP is PSPACE-hard for IO nets and in PSPACE for BIMO nets. In particular, we discuss the (small) bounds on the token numbers in net places that are decisive for a marking to be (non)live.

Jancar, Petr

April 18, 2023

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Cost Automata, Safe Schemes, and Downward Closures

In this work we prove decidability of the model-checking problem for safe recursion schemes against properties defined by alternating B-automata. We then exploit this result to show how to compute downward closures of languages of finite trees recognized by safe recursion schemes. Higher-order recursion schemes are an expressive formalism used to define languages of finite and infinite ranked trees by means of fixed points of lambda terms. They extend regular and context-free grammars, and are equivalent in expressive power to the simply typed $\lambda Y$-calculus and collapsible pushdown automata. Safety in a syntactic restriction which limits their expressive power. The class of alternating B-automata is an extension of alternating parity automata over infinite trees; it enhances them with counting features that can be used to describe boundedness properties.

Barozzini, David

April 18, 2023

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HRJ

[Hardy-Ramanujan Journal]

HRJ

Hardy-Ramanujan Journal

Created in 1978, Hardy-Ramanujan Journal is a peer-reviewed journal. Published by the Hardy-Ramanujan Society, it publishes articles in English in fundamental mathematics, more specifically in number theory.

Director of publication: C.S. Aravinda
Editors-in-chief: C.S. Aravinda ; Atul Dixit ; Kotyada Srinivas
Medium: electronic
Frequency: annual
Date created: 1978
Date of publication on Episciences: 2014
eISSN: 2804-7370
Subjects: mathematics, number theory
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Hardy-Ramanujan Society
- Address: Bhavana Trust, No.24, `Athreya’ 21st Main, 2nd Block, BSK I Stage BANGALORE — 560 050
- Country: India
Contact: hrj AT episciences.org

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Latest articles

A modular relation involving a generalized digamma function and asymptotics of some integrals containing Ξ(t)

A modular relation of the form $F(\alpha, w)=F(\beta, iw)$, where $i=\sqrt{-1}$ and $\alpha\beta=1$, is obtained. It involves the generalized digamma function $\psi_w(a)$ which was recently studied by the authors in their work on developing the theory of the generalized Hurwitz zeta function $\zeta_w(s, a)$. The limiting case $w\to0$ of this modular relation is a famous result of Ramanujan on page $220$ of the Lost Notebook. We also obtain asymptotic estimate of a general integral involving the Riemann function $\Xi(t)$ as $\alpha\to\infty$. Not only does it give the asymptotic estimate of the integral occurring in our modular relation as a corollary but also some known results.

Dixit, Atul

February 06, 2023

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A Generalization of Iseki's Formula and The Jacobi Theta Function

In this paper we give a generalization of Iseki's formula and use it to prove the transformation law of $\theta_1(z,\tau)$.

Me'Meh, Maher

February 06, 2023

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JDMDH

[Journal of Data Mining and Digital Humanities]

JDMDH

Journal of Data Mining and Digital Humanities

Created in 2014, the Journal of Data Mining and Digital Humanities (JDMDH) is situated at the intersection of data mining and digital humanities. The articles published concern both knowledge extraction and management (network analysis, information extraction, semantic web, preference analysis, machine learning) and the humanities and social sciences (historical, political, linguistic, sociological, geographical, communication and archiving) in the digital age.

Director of publication: Bruno Sportisse
Editors-in-chief: Richi Nayak ; Laurent Romary ; Nicolas Turenne
Medium: electronic
Frequency: continuous
Date created: 2014
Date of publication on Episciences: 2014
eISSN: 2416-5999
Subjects: social sciences and humanities, digital humanities, text mining
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt – B.P. 105 78153 Le Chesnay Cedex
- Country: France
Contact: jdmdh AT episciences.org

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Latest articles

From exemplar to copy: the scribal appropriation of a Hadewijch manuscript computationally explored

This study is devoted to two of the oldest known manuscripts in which the oeuvre of the medieval mystical author Hadewijch has been preserved: Brussels, KBR, 2879-2880 (ms. A) and Brussels, KBR, 2877-2878 (ms. B). On the basis of codicological and contextual arguments, it is assumed that the scribe who produced B used A as an exemplar. While the similarities in both layout and content between the two manuscripts are striking, the present article seeks to identify the differences. After all, regardless of the intention to produce a copy that closely follows the exemplar, subtle linguistic variation is apparent. Divergences relate to spelling conventions, but also to the way in which words are abbreviated (and the extent to which abbreviations occur). The present study investigates the spelling profiles of the scribes who produced mss. A and B in a computational way. In the first part of this study, we will present both manuscripts in more detail, after which we will consider prior research carried out on scribal profiling. The current study both builds and expands on Kestemont (2015). Next, we outline the methodology used to analyse and measure the degree of scribal appropriation that took place when ms. B was copied off the exemplar ms. A. After this, we will discuss the results obtained, focusing on the scribal variation that can be found both at the level of individual words and n-grams. To this end, we use machine learning to identify the most distinctive features that separate manuscript A from B. Finally, we look at possible diachronic trends in the appropriation by B's scribe of his exemplar. We argue that scribal takeovers in the exemplar impacts the practice of the copying scribe, while transitions to a different content matter cause little to no effect.

Haverals, Wouter

April 20, 2023

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Artificial colorization of digitized microfilms: a preliminary study

A lot of available digitized manuscripts online are actually digitized microfilms, a technology dating back from the 1930s. With the progress of artificial colorization, we make the hypothesis that microfilms could be colored with these recent technologies, testing InstColorization. We train a model over an ad-hoc dataset of 18 788 color images that are artificially gray-scaled for this purpose. With promising results in terms of colorization but clear limitations due to the difference between artificially grayscaled images and "naturaly" greyscaled microfilms, we evaluate the impact of this artificial colorization on two downstream tasks using Kraken: layout analysis and text recognition. Unfortunately, the results show little to no improvements which limits the interest of artificial colorization on manuscripts in the computer vision domain.

Clérice, Thibault

April 12, 2023

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jGCC

[journal of Groups, Complexity, Cryptology]

jGCC

journal of Groups, Complexity, Cryptology

The journal of Groups, Complexity, Cryptology (jGCC) is the continuation of the journal Groups, Complexity, Cryptology created in 2009. A peer-reviewed biannual journal, jGCC publishes research articles in the fields of combinatorial and computational group theory, complexity theory and cryptology.

Director of publication: Murray Elder
Editors-in-chief: Murray Elder ; Vladimir Shpilrain
Medium: electronic
Frequency: biannual
Date created: 2009
Date of publication on Episciences: 2020
eISSN: 1869-6104
Subjects: combinatorial and computational group theory, complexity theory, cryptology
Language of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Contact: gcc-contact AT episciences.org

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Latest articles

Multi-recipient and threshold encryption based on hidden multipliers

Let $S$ be a pool of $s$ parties and Alice be the dealer. In this paper, we propose a scheme that allows the dealer to encrypt messages in such a way that only one authorized coalition of parties (which the dealer chooses depending on the message) can decrypt. At the setup stage, each of the parties involved in the process receives an individual key from the dealer. To decrypt information, an authorized coalition of parties must work together to use their keys. Based on this scheme, we propose a threshold encryption scheme. For a given message $f$ the dealer can choose any threshold $m = m(f).$ More precisely, any set of parties of size at least $m$ can evaluate $f$; any set of size less than $m$ cannot do this. Similarly, the distribution of keys among the included parties can be done in such a way that authorized coalitions of parties will be given the opportunity to put a collective digital signature on any documents. This primitive can be generalized to the dynamic setting, where any user can dynamically join the pool $S$. In this case the new user receives a key from the dealer. Also any user can leave the pool $S$. In both cases, already distributed keys of other users do not change. The main feature of the proposed schemes is that for a given $s$ the keys are distributed once and can be used multiple times. The proposed scheme is based on the idea of hidden multipliers in encryption. As a platform, one can use both multiplicative groups of finite fields and groups of invertible elements of commutative rings, in particular, multiplicative groups of residue rings. We propose two versions of this scheme.

Roman'kov, Vitaly

March 21, 2023

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Geodesic Growth of Numbered Graph Products

In this paper, we study geodesic growth of numbered graph products; these are a generalization of right-angled Coxeter groups, defined as graph products of finite cyclic groups. We first define a graph-theoretic condition called link-regularity, as well as a natural equivalence amongst link-regular numbered graphs, and show that numbered graph products associated to link-regular numbered graphs must have the same geodesic growth series. Next, we derive a formula for the geodesic growth of right-angled Coxeter groups associated to link-regular graphs. Finally, we find a system of equations that can be used to solve for the geodesic growth of numbered graph products corresponding to link-regular numbered graphs that contain no triangles and have constant vertex numbering.

Marjanski, Lindsay

February 04, 2023

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JIMIS

[Journal of Interdisciplinary Methodologies and Issues in Science]

JIMIS

Journal of Interdisciplinary Methodologies and Issues in Science

Created in 2016, Journal of Interdisciplinary Methodologies and Issues in Science (JIMIS) is an interdisciplinary journal crossing scientific views between humanities and social sciences and exact and experimental sciences. Supported by the UMR Espace, the publication addresses transversal, thematic or methodological themes in the form of transdisciplinary special issues. The articles are published in English and French on a rolling basis.

Director of publication: Didier Josselin
Editor-in-chief: Didier Josselin
Medium: electronic
Frequency: continuous
Date created: 2016
Date of publication on Episciences: 2016
eISSN: 2430-3038
Subject: interdisciplinary
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: UMR7300 Espace
- Address: 74 rue Louis Pasteur, 84029 Avignon Cedex
- Country: France
Contact: jimis AT espisciences.org

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Latest articles

The use and impact of auditory stimulation in animals

Music can cause pleasant sensations in humans whereas some noises can cause discomfort. The effects of music and noise have also been somewhat studied in animals, showing different impacts. In this review we aim to illustrate the differences and similarities between animals, in terms of their sensitivity to auditory stimuli (noise or music), by first recalling some generalities about the physical characteristics of sound and the biological bases of hearing. Second, based on the studies reported in this review, we conclude that ambient noise is harmful and/or stressful, and that musical sounds can take many forms with a large range of impacts in animals. Finally, we present two practical examples of the use of music with animals (one in the context of a zoo and the other in cattle breeding) and an example of an experiment designed to understand the impact of music on neonate lambs. These three examples highlight how music can help to improve animal welfare.

Ubiema, Guillaume

September 30, 2022

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Science paysagère au service de l'observatoire scientifique Sociétés-Milieux en appui à la gestion territoriale

Pour mener son action face à une problématique de société, le gestionnaire de territoire doit s’appuyer sur des informations pertinentes dans le temps et l’espace. Les observatoires selon le modèle OSAGE – Observatoire Scientifique en Appui à la GEstion territoriale s'intéressent tout particulièrement aux relations Sociétés-Milieux et peuvent seconder le gestionnaire. Ce travail montre en quoi la méthode OSYPCA d’analyse paysagère et le cadre formel sur lequel elle s’appuie informent sur le milieu et la relation société-milieu et sont utiles aux trois piliers d'un observatoire OSAGE : exigence scientifique, continuité temporelle et ancrage territorial. L’analyse d’une expérience de terrain sur l’île de La Réunion illustre son potentiel à produire une information pertinente même si la connaissance préalable est réduite, à appréhender les dynamiques spatio-temporelles, sans nécessité d’investissements lourds et enfin à mettre en dialogue les disciplines scientifiques entre elles mais aussi les scientifiques avec les acteurs du territoire.

Loireau, Maud

January 05, 2022

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JIPS

[Journal d’Interaction Personne-Système]

JIPS

Journal d’Interaction Personne-Système

Created in 2008 by the Association francophone d’interaction humain-machine, the Journal d’Interaction Personne-Système (JIPS) succeeded the Revue d’Interaction Homme-Machine (RIHM), itself founded in 1997 and active until 2007 (then becoming the Revue des Interactions Humaines Médiatisées).

JIPS ceased publication in April 2022; published articles remain accessible on the journal’s website.

Director of publication: Sophie Dupuy-Chessa
Medium: electronic
Collection: 2010-2020
Date created: 2008
Date of publication on Episciences: 2008
eISSN: 2418-1838
Subjects: computer science, engineering, technology, cognitive science
Languages of publication: English, French
CC BY 4.0 licence
Publisher: Association Francophone d’Interaction Homme-Machine (AFIHM)
- Address: 385 rue de la Bibliothèque, 38041 Grenoble Cedex
- Country: France

Contact: presidence AT afihm.org

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Latest articles

Processus de changement de comportement : états, transitions et déterminants du comportement

Si le but et les garde-fous éthiques de la persuasion sont aujourd’hui bien compris, la littérature est abondante et les analyses critiques multiples, sans qu’un langage de comparaison n’ait été défini. Cet article propose les concepts d’états, de transitions et de déterminants pour caractériser les travaux de la littérature et ainsi en faciliter la compréhension et la comparaison. L’opérationnalisation de ce cadre ouvre des perspectives intéressantes au domaine.

Fenicio, Alessandro

February 08, 2021

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L’adaptation pour une persuasion durable

Persuader est difficile ; persuader sur la durée l’est encore plus. Nous explorons l’adaptation pour apporter de la variété et de la pertinence à la persuasion et ainsi pallier l’usure de l’efficacité des messages persuasifs. Le cas d’étude est TILT, un dispositif persuasif pour la régulation du temps d’usage du smartphone. La persuasion de TILT s’appuie sur le principe d’auto-surveillance. L’expérimentation démontre la pertinence de l’adaptation du message persuasif comme renfort de l’efficacité du principe d’auto-surveillance dans le temps.

Foulonneau, Anthony

January 22, 2021

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JNSAO

[Journal of Nonsmooth Analysis and Optimization]

JNSAO

Journal of Nonsmooth Analysis and Optimization

Established in 2019, the Journal of Nonsmooth Analysis and Optimization (JNSAO) publishes articles in English on all aspects of nonsmooth analysis related to optimization and equilibrium problems.

Director of publication: Christian Clason
Editors-in-chief: Christian Clason ; Tuomo Valkonen
Medium: electronic
Frequency: continuous
Date created: 2019
Date of publication on Episciences: 2019
eISSN: 2700-7448
Subjects: variational analysis, theory and algorithms for nonsmooth optimization and equilibrium problems, robust and chance-constrained stochastic optimization
Language of publication: English
Review process: single blind peer review
CC BY 4.0 licence

Contact: jnsao AT episciences.org

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Latest articles

Second-order conditions for non-uniformly convex integrands: quadratic growth in $L^1$

We study no-gap second-order optimality conditions for a non-uniformly convex and non-smooth integral functional. The integral functional is extended to the space of measures. The obtained second-order derivatives contain integrals on lower-dimensional manifolds. The proofs utilize the convex pre-conjugate, which is an integral functional on the space of continuous functions. Applications to non-smooth optimal control problems are given.

Wachsmuth, Daniel

May 23, 2022

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Analysis of the implicit Euler time-discretization of passive linear descriptor complementarity systems

This article is largely concerned with the time-discretization of descriptor-variable systems coupled to with complementarity constraints. They are named descriptor-variable linear complementarity systems (DVLCS). More speci cally passive DVLCS with minimal state space representation are studied. The Euler implicit discretization of DVLCS is analysed: the one-step non-smooth problem (OSNSP), that is a generalized equation, is shown to be well-posed under some conditions. Then the convergence of the discretized solutions is studied. Several examples illustrate the applicability and the limitations of the developments.

Brogliato, Bernard

May 12, 2022

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J. Philos. Econ.

[Journal of Philosophical Economics]

J. Philos. Econ.

Journal of Philosophical Economics

Journal of Philosophical Economics is a social science journal founded in 2007. Published by Editura ASE, J. Philos. Econ. publishes one volume per year containing articles and book reviews in German, English or French.

Director of publication: Dr. Simona Bușoi
Editor-in-chief: Valentin Cojanu
Medium: print and electronic
Frequency: annual
Date created: 2007
Date of publication on Episciences: 2021
eISSN: 1844-8208
Subjects: Social sciences, Philosophy, Economic theory
Languages of publication: English, French, German

Review process: single blind peer review
CC BY-NC-SA 4.0 licence

Publisher: Editura ASE
- Address: Academia de Studii Economice Bucuresti, Piata Romana 6, 010374 Bucuresti
- Country: Romania
Contact: jpe AT episciences.org

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Latest articles

Ways of Knowing Agency and Development: notes on the philosophy of science and the conduct and use of inquiry

Development is a value-laden concept and, as such, an essentially contested issue. To different extents, different ideas of development entail different assumptions about human agency. Although economics has been the most influential discipline, increasingly different accounts highlight distinct features of human beings and the contexts they inhabit, which lead to different implications. This article seeks to delineate the boundaries of the discussion and map out what are arguably the main alternatives within the field. Since such discussion deals with the question of what human action is, the argument is elaborated from the philosophy of science. Contra convention, the discussion uses a philosophical ontology, which is concerned with out connection to the world. Jackson’s heuristic is adopted to generate four philosophies of science and four notions of agency, regarded as ideal typical. Neopositivism advances a rational agent, reflexivity suggests a patient, critical realism furthers an interagent, and analyticism proposes a transagent. This article invites scholars and practitioners interested in this increasingly interdisciplinary area to raise their awareness regarding the foundations on which their ideas about human agency build and note the implications they have for the production and consumption of knowledge.

Garcés-Velástegui, Pablo

April 25, 2023

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Lehmann’s Analytical Inconsistencies on Liberalism and Capitalism

Review of Lehmann, P.-J., Liberalism and Capitalism Today, London, Hoboken: ISTE-Wiley, 2021, 214 pp, ISBN 978-1-78630-689-0

Văduva, Ionuț

February 13, 2023

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Mechanical engineering

JTCAM

[Journal of Theoretical, Computational and Applied Mechanics]

JTCAM

Journal of Theoretical, Computational and Applied Mechanics

Established in 2021, Journal of Theoretical, Computational and Applied Mechanics (JTCAM) welcomes research in English in the field of solid mechanics and mechanics of materials and structures. The journal publishes theoretical, numerical, applied and experimental research contributions on an ongoing basis.

Director of publication: Bruno Sportisse
Editorial Board: Laurence Brassart ; Shaocheng Ji ; Anna Pandolfi ; Alexander Popp ; Julien Réthoré ; Olivier Thomas ; Laszlo S. Toth
Medium: electronic
Frequency: continuous
Date created: 2021
Date of publication on Episciences: 2021
eISSN: 2726-6141
Subjects: Theoretical, Computational and Applied Mechanics
Language of publication: English
Review process: single blind or open peer review
CC BY 4.0 licence
Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt, BP 105, 78153 Le Chesnay Cedex
- Country: France

Contact: jtcam AT episciences.org

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Latest articles

Optimization of a dynamic absorber with nonlinear stiffness and damping for the vibration control of a floating offshore wind turbine toy model

Passive vibration mitigation of offshore wind turbines using nonlinear absorbers or nonlinear energy sinks has started to receive attention in the literature. In most cases, little attention has been paid to the possibility of detached resonances that occur when the nonlinear energy sink is attached to the linear system describing the wind turbine. Sea motions that alter the initial conditions of the floating offshore wind turbine may cause the nonlinear energy sink to operate at one or more detached resonances, completely negating its ability to control turbine vibration. In this paper, we are interested in optimizing the parameters of a nonlinear energy sink with nonlinear stiffness and nonlinear viscous damping for vibration control of a toy model (e.g., a linear mass-spring-damper system) of a floating offshore wind turbine over its entire operating range. The mechanism of cancellation of the detached resonance is studied analytically under 1:1 resonance. It is shown that the nonlinear energy sink with properly tuned nonlinear viscous damping allows the complete elimination of undesired regimes and completely restores the absorber's ability to strongly limit the vibration of a floating offshore wind turbine over its entire forcing range. The results obtained over a wide range of parameters suggest that both the optimal nonlinear energy sink parameters (linear and nonlinear stiffness and nonlinear damping) and the damping of floating offshore wind turbine vibration depend on simple power laws of nonlinear energy sink mass and linear damping.

Mattei, Pierre-Olivier

May 11, 2023

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Mathematics of stable tensegrity structures

Tensegrity structures have been extensively studied over the last years due to their potential applications in modern engineering like metamaterials, deployable structures, planetary lander modules, etc. Many of the form-finding methods proposed continue to produce structures with one or more soft/swinging modes. These modes have been vividly highlighted and outlined as the grounds for these structures to be unsuitable as engineering structures. This work proposes a relationship between the number of rods and strings to satisfy the full-rank convexity criterion as a part of the form-finding process. Using the proposed form-finding process for the famous three-rod tensegrity, the work proposes an alternative three-rod ten-string that is stable. The work demonstrates that the stable tensegrities suitable for engineering are feasible and can be designed.

Harish, Ajay B.

May 05, 2023

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LMCS

[Logical Methods in Computer Science]

LMCS

Logical Methods in Computer Science

Logical Methods in Computer Science (LMCS) publishes research articles in English on theoretical and practical areas of computer science involving logical methods, taken in a broad sense. Established in 2014, the journal is edited by Logical Methods in Computer Science e.V., a non-profit organisation whose aim is to facilitate the dissemination of scientific results related to logic in computer science.

Director of publication: Lars Birkedal
Editor-in-chief: Stefan Milius
Medium: electronic
Frequency: continuous
Date created: 2014
Date of publication on Episciences: 2015
eISSN: 1860-5974
Subjects: computer science, logical methods
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Logical Methods in Computer Science e.V.
- Country: Germany
Contact: lmcs AT episciences.org

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Latest articles

Adding Negation to Lambda Mu

We present $\cal L$, an extension of Parigot's $\lambda\mu$-calculus by adding negation as a type constructor, together with syntactic constructs that represent negation introduction and elimination. We will define a notion of reduction that extends $\lambda\mu$'s reduction system with two new reduction rules, and show that the system satisfies subject reduction. Using Aczel's generalisation of Tait and Martin-L\"of's notion of parallel reduction, we show that this extended reduction is confluent. Although the notion of type assignment has its limitations with respect to representation of proofs in natural deduction with implication and negation, we will show that all propositions that can be shown in there have a witness in $\cal L$. Using Girard's approach of reducibility candidates, we show that all typeable terms are strongly normalisable, and conclude the paper by showing that type assignment for $\cal L$ enjoys the principal typing property.

van Bakel, Steffen

May 25, 2023

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Enumerating Independent Linear Inferences

A linear inference is a valid inequality of Boolean algebra in which each variable occurs at most once on each side. In this work we leverage recently developed graphical representations of linear formulae to build an implementation that is capable of more efficiently searching for switch-medial-independent inferences. We use it to find four `minimal' 8-variable independent inferences and also prove that no smaller ones exist; in contrast, a previous approach based directly on formulae reached computational limits already at 7 variables. Two of these new inferences derive some previously found independent linear inferences. The other two (which are dual) exhibit structure seemingly beyond the scope of previous approaches we are aware of; in particular, their existence contradicts a conjecture of Das and Strassburger. We were also able to identify 10 minimal 9-variable linear inferences independent of all the aforementioned inferences, comprising 5 dual pairs, and present applications of our implementation to recent `graph logics'.

Das, Anupam

May 19, 2023

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MNA

[Mathematical Neuroscience and Applications]

MNA

Mathematical Neuroscience and Applications

Established in 2021, the journal Mathematical Neuroscience and Applications (MNA) focuses on mathematical modelling and analysis in all areas of neuroscience, i.e. the study of the nervous system and its dysfunctions. It is a continuation of the Journal of Mathematical Neuroscience (2011-2021), previously published by Springer. The journal welcomes articles in English.

Director of publication: Olivier Faugeras
Editor-in-chief: Olivier Faugeras
Medium: electronic
Frequency: annual
Date created: 2021
Date of publication on Episciences: 2021
eISSN: 2801-0159
Subjects: mathematics, neuroscience
Languages of publication: English
Review process: single blind peer review
CC BY 4.0 licence

Contact: mna AT episciences.org

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Latest articles

On the long time behaviour of single stochastic Hodgkin-Huxley neurons with constant signal, and a construction of circuits of interacting neurons showing self-organized rhythmic oscillations

The stochastic Hodgkin-Huxley neurons considered in this paper replace time-constant deterministic input $a dt$ of the classical deterministic model by increments $\vartheta dt + dX_t$ of a stochastic process: $X$ is Ornstein-Uhlenbeck with volatility $\sigma>0$ and backdriving force $\tau>0$, and we call $\vartheta>0$ the signal. We have ergodicity and strong laws of large numbers for various functionals of the process, and characterize 'quiet behaviour' and 'regular spiking' as events whose probability depends on the parameters $(\tau,\sigma)$ and on the signal $\vartheta$. The notions of quiet behaviour and regular spiking allow for a construction of circuits of interacting stochastic Hodgkin-Huxley neurons, combining excitation with inhibition according to a bloc structure along the circuit, on which self-organized rhythmic oscillations can be observed.

Höpfner, Reinhard

January 30, 2023

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Theoretical study of the emergence of periodic solutions for the inhibitory NNLIF neuron model with synaptic delay

Among other models aimed at understanding self-sustained oscillations in neural networks, the NNLIF model with synaptic delay was developed almost twenty years ago to model fast global oscillations in networks of weakly firing inhibitory neurons. Periodic solutions were numerically observed in this model, but despite its intensive study by researchers in PDEs and probability, there is up-to-date no analytical result on this topic. In this article, we propose to approximate formally these solutions by a Gaussian wave whose periodic movement is described by an associate delay differential equation (DDE). We prove the existence of a periodic solution for this DDE and we give a rigorous asymptotic result on these solutions when the connectivity parameter $b$ goes to $-\infty$. Lastly, we provide heuristic and numerical evidence of the validity of our approximation.

Ikeda, Kota

October 26, 2022

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MOS

[Management et organisations du sport]

MOS

Management et organisations du sport

Scientific journal of the Société Savante de Management du Sport, Management & Organisations du Sport (MOS), created in 2020, offers research articles in English and French. Published on an ongoing basis, the articles address multiple facets of sport organisation and management through different disciplinary perspectives.

Director of publication: Patrick Bouchet
Editor-in-chief: Guillaume Bodet
Medium: electronic
Frequency: continuous
Date created: 2020
Date of publication on Episciences: 2020
eISSN: 2804-8598
Subjects: sport management, management sciences
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Société Savante de Management du Sport (S2MS)
- Address: 27/29 boulevard du 11 novembre 1918, 69622 Villeurbanne Cedex
- Country: France
Contact: mos AT episciences.org

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LE RUGBY PROFESSIONNEL MASCULIN FRANÇAIS SOUS LE CHOC ECONOMIQUE DE LA COVID-19

La crise de la Covid-19 a impacté le sport professionnel et amateur français avec la suspension des compétitions à partir du 12 mars 2020 puis l’arrêt prématuré et définitif de la saison 2019/20. C’est le cas du rugby professionnel masculin français pour lequel les championnats professionnels du TOP 14 (1re division) et de la PRO D2 (2e division) ont été suspendus puis clôturés définitivement. Le 1er mars 2020, la Ligue Nationale de Rugby (LNR) votait pour une saison sans vainqueur de championnat ni équipes promues et reléguées avec un classement arrêté à la 17ème journée pour le TOP 14 et à la 23ème journée pour la PRO D2. En s’appuyant sur les travaux académiques menés sur le football amateur (Carin & Andreff, 2020), sur le basket professionnel (Carin, Desquennes, Jaworski et Andreff, 2021), cette recherche s’intéresse aux modèles économiques des clubs français professionnels masculins de rugby, à leur évolution sur la période de 2008/09 à 2018/19 et aux effets économiques de la Covid-19 sur les finances des clubs.L’accès aux données financières des clubs professionnels des deux premières divisions et des échanges avec la Direction Nationale d’Aide au Contrôle de Gestion (DNACG) permettent de mieux cerner la répartition des revenus, des charges et la performance financière d’avant la crise liée à la Covid-19 et d’apprécier les effets économiques à court terme de cette crise sur les saisons 2019/20 et 2020/21. Outre les effets économiques sur les deux premières saisons de la Covid-19, cette étude contribue à mettre en évidence la gestion de crise des organisations sportives de rugby professionnel français.

Yann, Carin

May 03, 2023

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Les parties prenantes de la gouvernance du système olympique

Cet article retrace l'apparition chronologique des parties prenantes qui mettent sur pied, tous les quatre ans, les Jeux olympiques modernes. Toutes ces parties prenantes forment aujourd'hui un système (olympique) dont la gouvernance s'est considérablement complexifiée au fil des olympiades et qui ne saurait être aujourd'hui uniquement hiérarchique (sous l'égide du Comité international olympique ou sous le contrôle des Etats) ou gouverné par le seul marché (représentés par les sponsors et les diffuseurs). L'article suggère une gouvernance collaborative qui intègre toutes les parties prenantes et notamment celles qui ont récemment pris beaucoup d'importance : les athlètes d'élite, les groupes citoyens et les ordres judiciaires, ainsi que les gouvernements locaux, régionaux et nationaux qui voient leurs rôles traditionnels de plus en plus renforcés dans le système olympique du XXIe siècle. Le Comité international olympique (CIO) a été créé en 1894 à l'issue d'un congrès organisé à Paris pour le rétablissement des Jeux olympiques. Depuis, il a fait en sorte que ces Jeux soient organisés tous les quatre ans dans une grande ville d'Europe ou des Etats-Unis, puis du monde entier (sauf pendant les deux guerres mondiales, en 1916, 1940 et 1944). La seule exception à ce rythme quadriennal est fournie par les Jeux prévus à Tokyo pour l'été 2020 et qui ont été reportés à l'été 2021 (tout en gardant le nom de « Tokyo 2020 ») à cause de la pandémie de Covid-19 qui se déclara au début 2020. Dès ses débuts, le CIO fut rejoint par d'autres organisations sportives qui contribuent à l'organisation des Jeux olympiques (d'été) (ainsi que des Jeux d'hiver depuis 1924 et des Jeux de la jeunesse depuis 2010) et qui sont aujourd'hui les parties prenantes d'un véritable système inter organisationnel en réseau qui s'est considérablement complexifié au fil du temps.

Chappelet, Jean-Loup

July 18, 2022

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OCNMP

[Open Communications in Nonlinear Mathematical Physics]

OCNMP

Open Communications in Nonlinear Mathematical Physics

Created in 2020, Open Communications in Nonlinear Mathematical Physics (OCNMP) is a mathematical journal focusing on nonlinear problems in mathematical physics. It publishes annual articles in English.

Director of publication: Norbert Euler
Editor-in-chief: Norbert Euler
Medium: electronic
Frequency: annual
Date created: 2020
Date of publication on Episciences: 2021
eISSN: 2802-9356
Subjects: mathematics, mathematical physics, non-linear sciences
Languages of publication: English
Review process: single blind peer review
CC BY 4.0 licence

Contact: ocnmp AT episciences.org

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Latest articles

The solutions of classical and nonlocal nonlinear Schrödinger equations with nonzero backgrounds: Bilinearisation and reduction approach

In this paper we develop a bilinearisation-reduction approach to derive solutions to the classical and nonlocal nonlinear Schr\"{o}dinger (NLS) equations with nonzero backgrounds. We start from the second order Ablowitz-Kaup-Newell-Segur coupled equations as an unreduced system. With a pair of solutions $(q_0,r_0)$ we bilinearize the unreduced system and obtain solutions in terms of quasi double Wronskians. Then we implement reductions by introducing constraints on the column vectors of the Wronskians and finally obtain solutions to the reduced equations, including the classical NLS equation and the nonlocal NLS equations with reverse-space, reverse-time and reverse-space-time, respectively. With a set of plane wave solution $(q_0,r_0)$ as a background solution, we present explicit formulae for these column vectors. As examples, we analyze and illustrate solutions to the focusing NLS equation and the reverse-space nonlocal NLS equation. In particular, we present formulae for the rouge waves of arbitrary order for the focusing NLS equation.

Zhang, Da-jun

February 06, 2023

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Full-deautonomisation of a class of second-order mappings in ancillary form

We present an application of the full-deautonomisation method to a class of secondorder mappings which, using an ancillary variable, can be cast into a form that greatly facilitates the study of their singularities. The ancillary approach was originally introduced to make it possible to construct discrete Painlevé equations associated with the affine Weyl group E (1) 8 by deautonomising a QRT mapping. The full-deautonomisation method has been shown to offer a practical technique for calculating the exact dynamical degree of a mapping, whereby allowing the detection of discrete integrability using only singularity analysis. We study the confinement property for a given singularity, for a wide class of mappings that includes the autonomous limit of the standard additive Painlevé equation with E (1) 8 symmetry. This leads to a class of non-autonomous mappings, which can be integrable or not, for which we obtain their exact dynamical degrees. The case of a non-confining singularity is also analysed and again we obtain the corresponding dynamical degrees.

Grammaticos, Basil

January 19, 2023

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Slovo

The annual journal Slovo (word, parole or verb in Russian and other Slavic languages) publishes articles on the languages, literatures, cultures and civilisations of the peoples of the post-Soviet space (Slavic, Siberian, Finno-Ugric, Caucasian, Baltic or Central Asian) and of Central and Balkan Europe. Created in 1978 and published by the Presses de l’Inalco, the journal is both multi-area and transdisciplinary, covering most of the disciplines of the humanities and social sciences.

Director of publication: Jean-François Huchet
Editors-in-chief: Catherine Géry ; Marie Vrinat-Nikolov
Medium: print and electronic
Frequency: annual
Date created: 1978
Date of publication on Episciences: 2017
eISSN: 2557-9851
Subjects: anthropology, arts, history, linguistics, literature, social sciences
Languages of publication: English, French

Review process: peer review
CC BY-NC-ND 4.0 licence

Publisher: Presses de l’Inalco
- Address: 2 rue de Lille, 75007 Paris
- Country: France
Contact: slovo AT episciences.org

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Latest articles

La réception en France de la musique soviétique : l'évolution de la censure de 1948 à 1958

Cet article étudie la réception en France des discours des autorités soviétiques sur la musique. La période de l’après-guerre est intéressante à plus d’un titre. Le paysage politique évolue avec les décès de Jdanov et Staline et deux décrets relatifs à la production musicale sont publiés en 1948 et 1958. Les bulletins de presse du ministère des Affaires étrangères et la production journalistique et intellectuelle à prétention savante du PCF sont des indicateurs de la réception de la musique soviétique dans l’espace public français. Nous apprécions l’évolution de la censure en URSS grâce aux discours en France sur le musicien professionnel et l’opéra soviétiques. La censure en URSS n’ayant pas toujours été maîtrisée, il convient de questionner le rôle des intellectuels communistes soviétiques et français. Nous appréhendons ainsi le réalisme socialiste en musique, mais aussi les désaccords que produit l’application de tels principes idéologiques. Bien que les sympathisants français traitent abondamment les actualités musicales soviétiques, on est amené à observer des divergences d’opinion, résultats de la diversité des cadres éditoriaux.

Thisselin, Thomas

May 23, 2023

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In vino veritas ou faut-il boire pour comprendre Erofeev ?: Remarques à propos de l’enregistrement sonore de la lecture publique de Moscou-sur-Vodka par Erofeev

Cet article a pour objet l’élaboration d’une piste d’intégration de l’enregistrement sonore de la lecture d’un texte par son auteur dans le cadre de recherches en littérature. Le texte se penche plus précisément sur l’enregistrement de la lecture de Moscou-sur-vodka par Venedikt Erofeev en 1980. Cet enregistrement renvoie à la problématique de l’interprétation littéraire et de la voix. En effet, par la double intervention d’Erofeev, lors de la rédaction puis la lecture publique du texte, cet enregistrement pourrait possiblement restreindre la diversité interprétative de l’œuvre. Pourtant, le contexte et la nature de cette lecture publique ne mènent pas nécessairement à l’écueil de l’interprétation strictement centrée sur l’auteur. Cette lecture enregistrée à haute voix d’Erofeev s’apparente plutôt à un rappel de la vocalité intrinsèque de l’œuvre – un aspect du texte qui peut se perdre lors de la lecture silencieuse répétée.

Lakine, Denis

May 23, 2023

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Sociétés plurielles

The journal Sociétés plurielles, created in 2017, is the result of the research programme of the same name associating several universities in Île-de-France within the COMUE Sorbonne Paris Cité. Published by the Presses de l’Inalco, it welcomes articles in French, English, Spanish, German and Italian. The journal covers all fields of study concerned with the plural in society and strongly supports interdisciplinary approaches.

Director of publication: Jean-François Huchet
Editor-in-chief: Madalina Vartejanu-Joubert
Medium: electronic
Frequency: annual
Date created: 2017
Date of publication on Episciences: 2017
eISSN: 2557-9959
Subjects: anthropology, area studies, history, sociology, socio-linguistics
Languages of publication: English, French

Review process: peer review
CC BY-NC 4.0 licence

Publisher: Presses de l’Inalco
- Address: 2 rue de Lille, 75007 Paris
- Country: France
Contact: societes-plurielles AT episciences.org

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Latest articles

L’archéologie au service des identités nationales : pourquoi faudrait-il détruire les collections de moulages d’art antique ?

À l’instar de l’Allemagne et à partir des années 1870, le moulage d’art antique fait l’objet d’un véritable « transfert culturel » en France et en Italie. Ce processus qui témoigne de l’émergence de l’archéologie en tant que science, s’insère dans le cadre plus vaste d’une modification de l’enseignement supérieur et d’une construction (dans le cas de l’Italie) ou d’un redressement de la nation (en France). Cependant, le processus de consolidation de l’État-nation se fonde sur un autre mécanisme culturel engendré par la mondialisation‑globalisation, à savoir l’« invention de la tradition ». Tels sont les cas notamment du « mythe de la Grèce blanche » ou de celui de la « Romanité » qui peuvent offrir des arguments suffisants pour justifier la destruction des collections de moulages d’art antique.

Avola, Irene

May 10, 2023

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Biais socio-centrés et constructions de l’altérité: Pour une approche anthropologique critique et raisonnée

Le retour sur les héritages coloniaux et les autres formes de domination rendent nécessaires l’approche critique des positions d’autorité fondant le discours scientifique. Quelles seraient les conditions de possibilité d’un savoir faisant droit à des formes alternatives de connaissance du monde et de discours à son sujet ? Toute approche n’apporte-t-elle pas ses biais dans le projet d’un savoir universel ? La réflexion repose sur une enquête ethnographique (Wallis) et le débat actuel sur la restitution, par les anciens pays coloniaux, des collections muséales africaines.

Chave-Dartoen, Sophie

May 10, 2023

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