Cancelamento motivado pela aplicação do plano de contingência da Faculdade de Ciências da Universidade de Lisboa relativo ao novo Coronavírus (COVID-19).
Mais informações: https://ciencias.ulisboa.pt/pt/saude.
Por Emílio Franco (IST).
Abstract: While it is well known that the moduli space of G-bundles over a smooth projective curve is compact, it is not the case for an arbitrary base variety. This motivated the definition of G-sheaves by Gomez and Sols who proved that their moduli space is a compactification of the moduli space of G-bundles. In this talk I will study the deformation and obstruction theory of these objects when G is either the symplectic or the orthogonal group.
Por Benoît Merlet (Laboratoire Paul Painlevé, Université de Lille).
Por Clément Cancès (Inria Lille - Nord Europe).
Abstract: We present an original model for immiscible two-phase mixtures. This model can be interpreted as the generalised gradient flow of the same energy as for the classical degenerate Canh-Hilliard model, but for a different geometry. Our model is shown to dissipate faster. Existence of weak solutions is established based on the convergence of a JKO semi discretization (joint work with Flore Nabet and Daniel Matthes).
Por Boris Zilber (Oxford University).
Por Pieter Roffelsen (SISSA).
Por Philipp Harms (FREIS, Univ. Freiburg).
Abstract: Fluid dynamics and shape analysis are linked by a common underlying geometric structure, namely, Sobolev-type Riemannian metrics on manifolds of mappings. I will characterize the degeneracy and non-degeneracy of the corresponding geodesic distances, establish local well-posedness of the corresponding geodesic equations, and discuss applications of these results to shape analysis and fluid dynamics.
Por B. Shapiro (Stockholm University).
Por Jean Lagacé (University College, London).
Por Sergey V. Smirnov (Moscow State University).
