T-Duality and Non-Local Realizations of Supersymmetry in String Theory

Abstract

We study non-local realizations of extended worldsheet supersymmetries and the associated space-time supersymmetries which arise under a T-duality transformation. These non-local effects appear when the supersymmetries do not commute with the isometry with respect to which T-duality is performed.

6 pages, Latex, Talk presented at the Workshop on Strings, Gravity and Related Topics, Trieste, 29-30 June 1995