The quantum orbifold cohomology of weighted projective spaces
The quantum orbifold cohomology of weighted projective spaces
复制标题
加权射影空间的量子轨道上同调
DOI:
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Hsian
中科院分区:
文献类型:
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作者:
T. Coates;A. Corti;Yuan;Hsian
We calculate the small quantum orbifold cohomology of arbitrary weighted projective spaces. We generalize Givental’s heuristic argument, which relates small quantum cohomology to S1-equivariant Floer cohomology of loop space, to weighted projective spaces and use this to conjecture an explicit formula for the small J-function, a generating function for certain genus-zero Gromov–Witten invariants. We prove this conjecture using a method due to Bertram. This provides the first non-trivial example of a family of orbifolds of arbitrary dimension for which the small quantum orbifold cohomology is known. In addition we obtain formulas for the small J-functions of weighted projective complete intersections satisfying a combinatorial condition; this condition naturally singles out the class of orbifolds with terminal singularities.
影响因子:
2.5
作者:
Coates T
通讯作者:
Coates T