Thursday, June 16, 2011

Hubble's law without a big bang

Robert MacKay
(Warwick Mathematics Institute)

Abstract: Hubble's law, that the redshift of distant galaxies grows with their luminosity distance, is one of the main pieces of evidence for the big bang. But one can obtain Hubble's law in space-times with no singularity if they have positive cosmological constant. One of the ingredients is that time-like geodesic flow in de Sitter space is Anosov. Joint work with Colin Rourke.

Thursday, June 16, 2011
Time: 17h30
Room: B2-01, Complexo Interdisciplinar, UL