Quadratic differentials and Donaldson-Thomas invariants
组织者
演讲者
Omar Kidwai
时间
2024年10月30日 13:30 至 14:30
地点
A3-2a-302
线上
Zoom 815 762 8413
(BIMSA)
摘要
We recall the relation between quadratic differentials and spaces of stability conditions due to Bridgeland-Smith. We describe the calculation of (refined) Donaldson-Thomas invariants for stability conditions on a certain class of 3-Calabi-Yau triangulated categories defined by Christ-Haiden-Qiu. This category is slightly different from the usual one discussed by Bridgeland and Smith, which in particular allows us to recover a nonzero invariant in the case where the quadratic differential has a second-order pole, in agreement with predictions from the physics literature. Based on joint work with N. Williams.