Asymptotic symmetries & representation theory in Gen. Relativity in 3 & 4 space-time dim (E. Melas)
Channel: Academy of Athens
Date: 2022-04-13

Thursday 31 March 2022

Evangelos Melas
University of Athens, Department of Economics

Asymptotic symmetries and representation theory in General Relativity in three and four space-time dimensions

Abstract:

The  original  Bondi-Metzner-Sachs (BMS) group B is the common asymptotic symmetry group of all asymptotically flat Lorentzian 4-dim space-times. As such, B is  the best candidate for the universal symmetry group of General Relativity (G.R.). We introduce the analogue B(2,1) of B Bondi-Metzner-Sachs group in 3 space-time dimensions. We state the results of the representation theory in three and four space-time dimensions.

Talk presented at the Research Center for Astronomy and Applied Mathematics of the Academy of Athens