Speaker : Professor Siye Wu (National Tsing-Hua University)
Title : Non-orientable surfaces and electric-magnetic duality
Time : 2018-05-25 (Fri) 16:00 - 17:00
Place : Seminar Room 617, Institute of Mathematics (NTU Campus)
Abstract: We consider the reduction along two compact directions of a twisted N=4 gauge theory on a 4-dimensional orientable manifold which is not a global product of two surfaces but contains a non-orientable surface. The low energy theory is a sigma-model on a 2-dimensional worldsheet with a boundary which lives on branes constructed from the Hitchin moduli space of the non-orientable surface. We verify the mirror symmetry of branes as predicted by the S-duality in gauge theory.