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Hilbert schemes of points on the minimal resolution and soliton equations

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arxiv math/0404540 v2 pith:DSSAXH3E submitted 2004-04-29 math.QA math.AG

Hilbert schemes of points on the minimal resolution and soliton equations

classification math.QA math.AG
keywords hilbertschemesequivariantfunctionsminimalpointsresolutionrings
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The equivariant and ordinary cohomology rings of Hilbert schemes of points on the minimal resolution C^2//G for cyclic G are studied using vertex operator technique, and connections between these rings and the class algebras of wreath products are explicitly established. We further show that certain generating functions of equivariant intersection numbers on the Hilbert schemes and related moduli spaces of sheaves on C^2//G are tau functions of 2-Toda hierarchies.

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