Minimizing gauge-functional for 2-d gravity and string theory

by Prof. Laurent Baulieu (LPTHE Paris and CERN)

Monday 30 Jul 2012, 16:00 → 17:00 Asia/Kolkata

A304 (Colaba Campus)

We show the existence of a minimizing procedure for selecting a unique representative on the orbit of any given Riemann surface that contributes to the string partition function. As it must, the procedure reduces the string path integral to an integration over a particular fundamental domain. The later is selected by the choice of the minimizing functional. This construction somehow demystifies the Gribov question.