Classical and quantum gravity in 3 dimensions

seminar: Causal AdS-spacetimes

speaker: Thierry Barbot (Université d'Avignon)

abstract: We give a geometric description of causal properties of (2+1)-dimensional spacetimes with negative cosmological constant (in short, AdS-spacetimes), with three main applications:

-- properness of causal actions (to be defined) of discrete groups of AdS-isometries on their causal domains (to be defined),

-- classification of globally hyperbolic AdS-spacetimes (in dimension $2+1$) with cauchy-complete cauchy surfaces,

-- proposal of a mathematical definition, and description, of black-holes contained in causal AdS-spacetimes, including the family of BTZ black-holes.

timetable:
Tue 6 Sep, 17:10 - 18:00, Aula Dini
documents:

Causal AdS-spacetimes

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