Sous la loupe des chercheurs de l’Université Laval (Québec) ÉMISSION 1 – ÉDUCATION Nous découvrons la dyscalculie, équivalent de la dyslexie, mais par rapport aux nombres. Nous nous interrogeons sur la profession des conseillers en orientation. Enfin, nous étudions le parcours de jeunes enseignants québécois. Participants : Anne Lafay, étudiante au doctorat en médecine expérimentale Simon Viviers, étudiant au doctorat en sciences de l'orientation Caroline Jeanson, étudiante à la maîtrise en sociologie
Mot(s) clés libre(s) : enseignement, école, éducation, conseiller d'orientation, dyscalculie

In a Riemannian 3-manifold, minimal surfaces are critical points of the area functional and can be a useful tool to understand the geometry and the topology of the ambient manifold. The aim of these lectures is to give some basic definitions about minimal surface theory and present some results about the construction of minimal surfaces in Riemannian 3-manifolds.
Mot(s) clés libre(s) : mathématiques, Grenoble, école d'été, institut fourier, summer school, geometric analysis, metric geometry, topology

Des jeux aux maths•    Marc Chemillier, directeur d'études EHESSWhat is a serious game?•    Julian Alvarez, Professeur associé à l'Université de Lille 1, membre LudoscienceQuels transferts de connaissances par le jeu numérique dans l’enseignement ? •    Eric Sanchez, Maître de Conférences à l'Institut français de l'Éducation, ENS Lyon
Mot(s) clés libre(s) : école, jeux, apprentissage cognitif

"Il faut absolument rendre la parole. Parce qu'on n'apprend pas à écriture sans d'abord apprendre à parler en maîtrisant un minimum son langage."Suzy Platiel s'est investit dans les écoles et les collèges pour faire découvrir  aux élèves le conte. Son approche a eu des effets positifs qui a ainsi permis  de libérer leur parole.Avec Suzy Platiel
Mot(s) clés libre(s) : écoles, LLACAN, UPS2259, Contes, Suzy Platiel, Paroles d'Afrique

For centuries, Central Tibet and its capital Lhasa were regarded as the center—as is obviously expressed in the very name of the region in Tibetan, dBus, “Center”—of political and religious life in the Tibetan world; the cultural center where all Tibetans aspire to go, at least once in their lifetime. But changes seem to be taking place, raising questions about a possible increase in the role of the borderlands in Tibetan cultural production. The margins that are A mdo and Khams experience a new visibility at the religious, cultural, and political levels. A mdo is now the scene of a significant cultural revival and the cradle for new expressive forms such as Tibetan film-making. At the same time, Khams and A mdo are experiencing a thriving religious revival, with famous lamas founding new religious places drawing in their vicinity huge settlements of Tibetans from all over Tibet, as well as Chinese devotees. Immolations, the new language of protest, was initiated in these areas. Tourism is flourishing in Khams where rGyal thang has been renamed Shangri la in 2002, attracting as many as 6 millions tourists in 2013, as well as many Tibetans from A mdo and even Lhasa looking for jobs. The main sacred mountains in these Tibetan backwaters, A myes rma chen and Kha ba dkar po, used to attract only local people worshipping their yul lha, are now becoming pilgrimage places for pilgrims from more distant areas of Tibetan plateau. This paper addresses the various factors contributing to this decentralization process and its consequences. International conference “Territories, Communities, and Exchanges in the Sino-Tibetan Kham Borderlands,” Februray 18-20, 2016. This conference is an outcome of a collaborative ERC-funded research project (Starting grant no. 283870). For more information, please visit the project's Website: http://kham.cnrs.fr 
Mot(s) clés libre(s) : UPS2259, Katia Buffetrille, CEH, Centre d'Etudes Himalayennes, The Increasing Visibility of the Borderlands, Territories, Communities, and Exchanges in the Kham Sino-Tibetan Borderlands, ERC (European Research Council), Ecole Pratique des Hautes Etudes

la parole, c’est aussi la manière dont l’être humain va pouvoir prendre sa place dans la société; non seulement en apprenant la langue que parlent ses parents ou les personnes qui l’entourent, mais aussi en apprenant à «bien parler», à savoir quand et comment prendre la parole et quand se taire. Elle est donc abordée par le biais de la socialisation.Avec Paulette Roulon-Doko (LLACAN)
Mot(s) clés libre(s) : école, oralité, LLACAN, UPS2259, Paroles d'Afrique, Paulette Roulon-Doko

In these lectures, Gromov{Witten theory will be introduced, assuming only basic moduli theory covered in the rst week of the School. Then the Crepant Transformation Conjecture will be explained. Some examples, with emphasis on the projective/global cases, will be given. Note: The construction of virtual fundamental class, which forms the foundation of the GW theory, will be given in Jun Li's concurrent lectures and will not be explained here.
Mot(s) clés libre(s) : mathématiques, Grenoble, école d'été, courbes, institut fourier, summer school, Gromov-Witten

Le but de cet exposé est de présenter des généralisations multidimensionnelles des fractions continues et de l’algorithme d’Euclide d’un point de vue systèmes dynamiques, en nous concentrant sur les liens avec la numération et les substitutions. Nous allons considérer principalement deux types de généralisations, à savoir, les algorithmes définis par homographies, comme l’algorithme de Jacobi-Perron, et les fractions continues associées aux algorithmes de réduction dans les réseaux.
Mot(s) clés libre(s) : mathématiques, Grenoble, école d'été, dynamics, institut fourier, summer school, number theory

Conformal compactification has long been recognised as an effective geometric framework for relating conformal geometry, and associated field theories ``at infinity'', to the asymptotic phenomena of an interior (pseudo-­‐)-­‐Riemannian geometry of one higher dimension. It provides an effective approach for analytic problems in GR, geometric scattering, conformal invariant theory, as well as the AdS/CFT correspondence of Physics. I will describe how the notion of conformal compactification can be linked to Cartan holonomy reduction. This leads to a conceptual way to define other notions of geometric compactification. The idea will be taken up, in particular, for the case of compactifying pseudo-­‐ Riemannian manifolds using projective geometry. A new characterisation of projectively compact metrics will be given, and some results on their asymptotics near the conformal infinity. This is joint work with Andreas Cap.
Mot(s) clés libre(s) : mathématiques, Grenoble, école d'été, General Relativity, institut fourier, summer school, asymptotic analysis

Lecture I. I’ll give a complete elementary presentation of the essential features of the Perron Frobenius theory of nonnegative matrices for the central case of primitive matrices (the "Perron" part). (The "Frobenius" part, for irreducible matrices, and finally the case for general nonnegative matrices, will be described, with proofs left to accompanying notes.) For integer matrices we’ll relate "Perron numbers" to this and Mahler measures. Lecture II. I’ll describe how the Perron-Frobenius theory generalizes (and fails to generalize) to 1,2,... x 1,2,... nonnegative matrices. Lecture III. We’ll see the simple, potent formalism by which a certain zeta function can be associated to a nonnegative matrix, and its relation to the nonzero spectrum of the matrix, and how polynomial matrices can be used in this setting for constructions and conciseness. Lecture IV. We’ll describe a natural algebraic equivalence relation on finite square matrices over a semiring (such as Z, Z_+, R, ... ) which refines the nonzero spectrum and is related to K-theory.
Mot(s) clés libre(s) : mathématiques, Grenoble, école d'été, dynamics, institut fourier, summer school, number theory