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Gerbes and twisted orbifold quantum cohomology
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Science China Mathematics 2008年 第6期51卷 995-1016页
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 Institute of Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China department of Mathematics University of Wisconsin-Madison Madison USA department of Mathematics The Hong Kong University of Science and Technology Hong Kong China
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.
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