Speaker
José Figueroa-O'Farrill
(School of Mathematics, The University of Edinburgh)
Description
I will report on joint work with Emil Have, Stefan Prohazka and Jakob Salzer in which we present a seemingly novel projective compactification of Minkowski space which reveals a rich asymptotic geometry including the blow-ups at spacelike and timelike infinity and a novel four-dimensional space fibering over null infinity. All these spaces are homogeneous under the Poincaré group and moreover they coexist harmoniously embedded in a pseudo-euclidean space as codimension-two orbits of a Poincaré subgroup acting linearly in the ambient space.
Primary author
José Figueroa-O'Farrill
(School of Mathematics, The University of Edinburgh)
