GTM seminar

Speaker: Yukinobu Toda (Kavli IPMU)
Title: Flops and S-duality conjecture
Date (JST): Thu, Jan 30, 2014, 15:30 - 17:00
Place: Seminar Room A
Abstract: I explain my recent work on flop transformation formula of Donaldson-Thomas invariants counting two dimensional torsion sheaves on Calabi-Yau 3-folds. As an application, I show that the generating series of Euler characteristics of Hilbert schemes of points on A_n type surface singularities is a modular form.