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arXiv math/9907087math.AG
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辛商奇点的McKay对应

McKay correspondence for symplectic quotient singularities

D. Kaledin

摘要:

本文研究了辛复向量空间$V$通过有限子群$G \subset Sp(V)$的子空间$X = V/G$,其中有限子群允许光滑可裂分解$Y \to X$ .对于这样的同调,我们证明了M.里德也就是说,我们在同调空间$H_\cdot(Y,\Q)$中构造了一个自然基,其元素由有限群$G$中的共轭类编号。

英文摘要:

We consider the quotients $X = V/G$ of a symplectic complex vector space $V$ by a finite subgroup $G \subset Sp(V)$ which admit a smooth crepant resolution $Y \to X$. For such quotients, we prove the homological McKay correspondence conjectured by M. Reid. Namely, we construct a natural basis in the homology space $H_\cdot(Y,\Q)$ whose elements are numbered by the conjugacy classes in the finite group $G$.

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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