ELFT HÍRADÓ

[Balog Janos <balog.janos AT wigner.mta.hu>]

MTA Wigner FK RMI Elméleti Osztály Szemináriuma
Tisztelettel meghívjuk


                         Philippe G. LeFloch
                   (University of Paris 6 and CNRS)

         "The nonlinear stability of Minkowski spacetime
               for self-gravitating massive fields"


                címmel tartandó szemináriumára.


Kivonat:

I will discuss the global evolution problem for self-gravitating massive 
matter in the context of Einstein's theory and, more generally, of the 
f(R)-theory of gravity. In collaboration with Yue Ma (Xian), I have 
investigated the global existence problem for the Einstein-Klein-Gordon 
system and established that Minkowski spacetime is globally nonlinearly 
stable in presence of massive fields. The method proposed by 
Christodoulou and Klainerman and the more recent proof in wave gauge by 
Lindblad and Rodnianski only cover vacuum spacetimes or massless fields. 
Analyzing the time decay of massive waves requires a completely new 
approach, the Hyperboloidal Foliation Method, which is based on a 
foliation by asymptotically hyperboloidal hypersurfaces and on 
investigating the algebraic structure of the Einstein-Klein-Gordon 
system.



Helye: MTA Wigner FK RMI III.ép. Tanácsterem
Ideje: 2017 március 17  péntek du. 14:00 óra



Szívesen látunk minden érdeklődőt.

                                            Balog János