Gromov's reconstruction theorem and measured Gromov-Hausdorff convergence in Lorentzian geometry

Mathias Braun (U Toronto)

Mar 13. 2023, 16:00 — 16:45

An important current topic in nonsmooth general relativity is to find a good notion of convergence of Lorentzian spaces. While recent works have introduced promising analogues to Gromov-Hausdorff convergence, in this talk we concentrate on its measured counterpart. We first prove a Lorentzian Gromov reconstruction theorem, which indicates a good notion of isomorphy of measured Lorentzian spaces. Based on that, we propose different definitions of measured Lorentz-Gromov-Hausdorff convergence. Finally, we outline their mutual relation as well as possible applications. In collaboration with Clemens Sämann (University of Oxford).

Further Information
Venue:
ESI Boltzmann Lecture Hall
Recordings:
Recording
Associated Event:
Non-regular Spacetime Geometry (Workshop)
Organizer(s):
Piotr T. ChruĊ›ciel (U of Vienna)
Melanie Graf (U Hamburg)
Michael Kunzinger (U of Vienna)
Ettore Minguzzi (U Florence)
Roland Steinbauer (U of Vienna)