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Matthew Young ( The Chinese University of Hong Kong )
2017-05-25  09:30 - 10:20
Room 101, Mathematics Research Center Building (ori. New Math. Bldg.)

Hori and Walcher have suggested a Lefschetz type index theorem for B-twisted Landau-Ginzburg orientifolds, computing parity twisted open string Witten indices in terms of closed sector information. I will describe work in progress whose goal is to prove this formula, along with some of its generalizations.