Conveners
Thursday Session 2
- Szymon Sikora (Astronomical Observatory, Jagiellonian University)
Léo Brunswic
(CRAL, ENSL, Université Lyon 1)
20/09/2018, 11:00
In 2+1 Buchert's dust framework, the Gauss-Bonnet Theorem allows us to identify the Euler characteristic with a mass of topological origin, with positive or negative sign. Even though this does not extend in a straightforward manner to the 3+1 setting, a Theorem of Mess extended by Bonsante and Barbot suggest the insight extend to higher dimension. We explain how the Euler characteristic may...
Pavlina Jaluvkova
(JINR Dubna, Russia;Silesian university in Opava, Czech Republic)
20/09/2018, 11:30
In this work, we propose the way to construct the model of the cosmological black hole in the dust-filled universe on the basis of the exact solution to the Einstein equations of the Lemaitre-Tolman-Bondi class. We have found such solution as a particular case of Tolman solution with the arbitrary functions chosen in a special way such that the solution includes both the Schwarzschild and...
