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Label UNT Conférences

le (50m25s)

L'utilité sociale est-elle soluble dans l'évaluation

Florence Jany-Catrice est économiste, professeure à l’université de Lille 1 et membre du CLERSE (Centre Lillois d'Etudes et de Recherches Sociologiques et Economiques).Ses travaux portent notamment sur l’évaluation des performances et de la croissance dans une économie de la « qualité » et sur l’évaluation des actions publiques.La reconnaissance de l’utilité de l’économie sociale et solidaire est au coeur de ses préoccupations.
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le (50m25s)

B. Gris - A sub-riemannian metric from constrained deformations

A general method to study a population of objects (images, meshes) is to examine how these objects can be deformed by a chosen class of diffeomorphisms. When these objects satisfy some constraints (for instance biological constraints), it can be relevant to incorporate them in the choice of diffeomorphisms. We developed a generic framework to build constrained diffeomorphisms and showed that it allows to define a sub-riemannian structure on the space of objects under study. I will present this framework and show how it can be used in several situations.
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le (50m25s)

J.-M. Martell - A minicourse on Harmonic measure and Rectifiability (Part 3)

Solving the Dirichlet boundary value problem for an elliptic operator amounts to study the good properties of the associated elliptic measure. In the context of domains having an Ahlfors regular boundary and satisfying theso-called interior corkscrew and Harnack chain conditions (these are respectively scale invariant/quantitative versions of openness and path-connectivity) we will show that for the class of Kenig-Pipher uniformly elliptic operators thesolvability of the Lp-Dirichlet problem with some finite p is equivalent to theuniform rectifiablity of the boundary. Joint work with S. Hofmann, S. Mayboroda, T. Toro, and Z. Zhao.
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