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arXiv 1409.4576math.AGmath.KT
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稳定对的模空间的余协不变量

Cobordism invariants of the moduli space of stable pairs

Junliang Shen

摘要:

对于带有完全阻塞理论的拟射影概形M,我们构造了M的虚配边类。若M是射影的,则证明了虚配边类的相应Chern数由虚切丛的Chern类的积分给出.进一步,我们研究了Pandharipande-Thomas引入的稳定对的模空间的协边不变量.证明了分拆函数的合理性和一个函数方程,它可以看作是Calabi-Yau情形的合理性和1/<->qq对称性的推广.利用后代理论证明了非奇异投射环面3-重的合理性。

英文摘要:

For a quasi-projective scheme M which carries a perfect obstruction theory, we construct the virtual cobordism class of M. If M is projective, we prove that the corresponding Chern numbers of the virtual cobordism class are given by integrals of the Chern classes of the virtual tangent bundle. Further, we study cobordism invariants of the moduli space of stable pairs introduced by Pandharipande-Thomas. Rationality of the partition function is conjectured together with a functional equation, which can be regarded as a generalization of the rationality and 1/q <-> q symmetry of the Calabi-Yau case. We prove rationality for nonsingular projective toric 3-folds by the theory of descendents.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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