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科学研究
报告题目:

S-matrix in orbifold theory

报告人:

任丽 教授(四川大学数学学院)

报告时间:

报告地点:

腾讯会议 ID:494 241 264

报告摘要:

Let V be a simple vertex operator algebra and G a finite automorphism group of V such that V^G is regular. It is proved that every irreducible V^G module occurs in an irreducible g-twisted V-module for some g in G and the global dimension of V is independent of any finite order automorphisim of V. Moreover, the S-matrix associated to a rational orbifold theory is determined. In the case of permutation orbifolds, the S-matrix is given explicitly in terms of the S matrices of the original vertex operator algebra. This is a joint work with Chongying Dong and Feng Xu.