数学科学研究所
Insitute of Mathematical Science

Hochschild cohomology of curved algebras and Orbifold Landau-Ginzburg B-models

Seminar | Institute of Mathematical Sciences

Time:10:30-11:30, Nov 08, Thursday

LocationRoom 302, Library


Speaker: Yifan Li (李逸凡,清华大学)


Abstract: In this talk, I will explain our recent work on G-twisted version of homotopy Gerstenhaber alge- braic structure on Hochschild cochains of curved algebras. We give explicit cup product formula for all invertible singularities with arbitrary orbifold group G. This computes G-Frobenius alge- bra for general orbifold Landau-Ginzburg B-models, which is conjectured to be mirror to that of FJRW’s counting of Witten’s equation. This is a joint work with Weiqiang He and Si Li.


地址:上海市浦东新区华夏中路393号
邮编:201210
上海市徐汇区岳阳路319号8号楼
200031(岳阳路校区)