Análise

Confinement of dislocations inside a crystal via gamma convergence

Riccardo Scala
CMAF-CIO

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A notion of instability for a nonlinear beam modeling a suspension bridge

Por Maurizio Garrione (University of Milano Bicocca).

Joint work with F. Gazzola (Polytechnic of Milan).

This seminar is supported by National Funding from FCT - Fundação para a Ciência e a Tecnologia, under the project: UID/MAT/04561/2013.

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A priori Sobolev regularity for fully nonlinear parabolic equations

Edgard Pimentel
Universidade Federal de São Carlos

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Global solutions to the Einstein-Klein-Gordon system

Philippe G. LeFloch
University of Paris 6 and CNRS

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Quasi-invariant gaussian measures for the nonlinear wave equation

Nikolay Tzvetkov
Univ. de Cergy-Pontoise

Abstract: We will show that a natural class of gaussian measures living on Sobolev spaces of varying regularity are quasi-invariant under the flow of the two dimensional cubic defocusing wave equation. For that purpose, we introduce renormalised energies and we establish the associated energy estimates.
This is a joint work with Tadahiro Oh (Edinburgh University).