Séminaire Analyse Numérique et EDP
Initial data for Minkowski stability with arbitrary decay
04
April 2024
April 2024
Intervenant : | Arthur Touati |
Institution : | Institut des Hautes Etudes Scientifiques (IHES) |
Heure : | 13h45 - 15h00 |
Lieu : | 3L8 |
Attention: unusual time, the talk starts at 1:45 !!
In this talk, I will present a construction of arbitrarily decaying initial data for the stability of Minkowski spacetime as solutions to the Einstein equations. Initial data on a spacelike hypersurface need to solve the so-called constraint equations, i.e a geometric nonlinear underdetermined elliptic system. I will show how one can parametrize solutions in a neighborhood of Minkowski spacetime and address linear obstructions coming from conservation laws in general relativity. This is a joint work with Allen Juntao Fang and Jérémie Szeftel.