Globally hyperbolic anti-de Sitter manifolds and compact Clifford-Klein forms

Nicolas Tholozan (ENS Paris)

Oct 20. 2023, 15:20 — 16:10

I will describe a bijective correspondance between, on one side,  Globally hyperbolic maximal anti-de Sitter manifolds of dimension $2d+1$ with a compact convex Cauchy hypersurface, and, on the other side, compact quotients of the pseudo-Riemannian symmetric space $O(2d,2)/U(d,1)$. This symmetric space can be interpreted as the space of timelike unitary Killing fields of $AdS^{2d+1}$. 
 
This is based on joint works with Daniel Monclair, Jean-Marc Schlenker and Fanny Kassel.

Further Information
Venue:
ESI Boltzmann Lecture Hall
Recordings:
Recording
Associated Event:
Geometry beyond Riemann: Curvature and Rigidity (Thematic Programme)
Organizer(s):
Ivan Izmestiev (TU Vienna)
Athanase Papadopoulos (IRMA, Strasbourg)
Marc Troyanov (EPFL, Lausanne)
Sumio Yamada (Gakushuin U, Tokyo)