题   目 ：Supersymmetric field theories and Jacobi forms

摘   要:  Graeme Segal conjectured in the 1980's that the cohomology theory known as ellptic cohomology can be described in terms of 2-dim (conformal) field theories. Almost twenty years later, Stolz and Teichner developed Segal's idea systematically. They showed that the partition function of a 2|1 EFT (Euclidean field theory) is a modular form, which can be seen as the first step towards attacking the conjecture. We give more evidence of the conjecture by showing that the partition function of 2|2-field theories are Jacobi forms，which we believe corresponds to complex elliptic genus.

报告人： 李勤博士    中国科学技术大学数学科学学院

时  间： 2011年10月12日  下午4:50--5:50

地  点：管理科研楼1518室

主办单位： 中国科学技术大学数学科学学院  国家数学与交叉科学中心合肥分中心  中科院吴文俊数学重点实验室 

欢迎感兴趣的师生参加！