Gerbes and twisted orbifold quantum cohomology  

作　　者：PAN JianZhong~1 RUAN YongBin~(2,3) YIN XiaoQin~(1,3+) 1 Institute of Mathematics,Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100080,China 2 Department of Mathematics,University of Wisconsin-Madison,WI 53706,USA 3 Department of Mathematics,The Hong Kong University of Science and Technology,Hong Kong,China 

出　　处：《Science China Mathematics》2008年第6期995-1016,共22页中国科学：数学（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.10631060);the National Science Foundation and Hong Kong Research Grant Council Earmarked

摘　　要：In this paper,we construct an orbifold quantum cohomology twisted by a flat gerbe. Then we compute these invariants in the case of a smooth manifold and a discrete torsion on a global quotient orbifold.In this paper, we construct an orbifold quantum cohomology twisted by a flat gerbe. Then we compute these invariants in the case of a smooth manifold and a discrete torsion on a global quotient orbifold.

关 键 词：GERBE ORBIFOLD quantum cohomology 53D45 

分 类 号：O189.22[理学—数学]