SMS scnews item created by Boris Lishak at Tue 5 Mar 2019 1527
Type: Seminar
Distribution: World
Calendar1: 11 Mar 2019 1400-1500
CalLoc1: Carslaw 535A
CalTitle1: Schlue -- Geometry of expanding black hole cosmologies
Auth: borisl@dora.maths.usyd.edu.au

Geometry and Topology Seminar

Geometry of expanding black hole cosmologies

Volker Schlue (Melbourne)

Please join us for lunch before the talk. We are meeting at 12:30 on Carslaw level 2.

Abstract:

In general relativity, the so called Schwarzschild de Sitter spacetimes are the simplest models of a black hole in an expanding universe. I will describe the geometry of these 3+1-dimensional Lorentzian manifolds, and describe progress on a related stability problem for the Einstein vacuum equations. It turns out that the conformal Weyl curvature plays a central role in understanding the evolution of expanding spacetimes, and I will discuss a phenomenon known as the global redshift effect.


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