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arXiv math/0410194math.QAmath.RT
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$A_{\infty}$ -模与Calogero-Moser空间

$A_{\infty}$-modules and Calogero-Moser Spaces

Yuri Berest, Oleg Chalykh

摘要:

我们重新检查的第一Weyl代数的理想的同构类的集合和相关的Calogero-Moser空间(\cite{BW1, BW2})簇之间的双射对应。基于秩为1的无挠$A_1$ -模的$\A$ -包络的概念,我们给出了这种对应的一个新的显式构造.虽然可能比其他方法少几何,我们的方法是简单得多,似乎更自然的变形理论的观点。

英文摘要:

We re-examine the bijective correspondence between the set of isomorphism classes of ideals of the first Weyl algebra and associated quiver varieties (Calogero-Moser spaces) \cite{BW1, BW2}. We give a new explicit construction of this correspondence based on the notion of $\A$-envelope of a rank one torsion-free $A_1$-module. Though perhaps less geometric than other methods, our approach is much simpler and seems more natural from the point of view of deformation theory.

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