Flavors of Amplitudes
Kick-off event on Wed 28.01.26 at Institut Henri Poincaré. Inscriptions: link indico
The seminars at IHES will take place on the following Wednesdays: 4.02, 18.02 and 18.03, see program
Geometrical asymptotics in General Relativity
byYannick Herfray
Abstract:In general relativity there are several classical notions of asymptotic flatness: In effect these amount to the possibility of “adding a boundary at infinity” to the curved spacetime. The exact procedure and geometry is however very different depending on whether one considers an asymptote in null, time-like, or space-like directions. I will show that these can nonetheless all be derived from one unique concept, curved obit decomposition of Cartan geometry, and that there is therefore a profound unity in these notions of asymptotics.
Keywords:
General Relativity, Asymptotic Symmetry, Cartan geometry, Tractors