ELFT HÍRADÓ

["Balog Janos" <balog AT rmki.kfki.hu>]

KFKI RMKI Elméleti Főosztály Szemináriuma


Tisztelettel meghívjuk


                     Prof. Ingemar Bengtsson
                    (University of Stockholm)

       "Trapped surfaces in simple collapse situations"



                címmel tartandó szemináriumára.


Helye: KFKI RMKI III. ép. Tanácsterem
Ideje: 2011. október 17. hétfő du. 14 óra


Kivonat:

Given an evolving black hole there is a region of spacetime such that a
trapped surface passes through every point in the region. What is the
boundary of this region? I will discuss this question for spherically
symmetric spacetimes; it seems to be easy to answer for outer trapped
surfaces, but it is non-trivial for trapped surfaces with both null
expansions negative. If there is time I might also mention some results
for a 2+1 dimensional toy model, where one can do without any symmetry
assumptions.



Szívesen látunk minden érdeklődőt.
                                            Balog János