Por Dietmar Hoemberg (Institut für Mathematik - Technische Universität Berlin).

Por Patrícia Gonçalves (Mathematics Department, IST, University of Lisbon).

Seminário financiado por Fundos Nacionais através da FCT – Fundação para a Ciência e a Tecnologia no âmbito do projeto UID/MAT/04561/2013. 

Simão Correia (CMAF-CIO, Faculdade de Ciências da Universidade de Lisboa).

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

Riccardo Scala
CMAF-CIO

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. 

Edgard Pimentel
Universidade Federal de São Carlos

Philippe G. LeFloch
University of Paris 6 and CNRS

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).

Por Darya Apushkinskaya (Saarland University, Saarbrücken, Germany).

Por Nazarov A. I. (St. Petersburg Dept of Steklov Institute and St. Petersburg State University).