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Nakajima's creation operators and the Kirwan map

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arxiv 2304.07241 v3 pith:B56EXMHX submitted 2023-04-14 math.AG

Nakajima's creation operators and the Kirwan map

classification math.AG
keywords creationnakajimaoperatorskirwanactionaffinebundlechern
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We consider the Hilbert scheme of points in the affine complex plane. We find explicit formulas for the Nakajima's creation operators and their K-theoretic counterparts in terms of the Kirwan map. We obtain a description of the action of Nakajima's creation operators on the Chern classes of the tautological bundle.

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  1. Deformation Theory and Torus-Fixed Geometry of the Nested Hilbert Scheme of Points

    math.AG 2026-06 unverdicted novelty 6.0

    Derives the tangent space as a compatibility kernel and a modified arm-leg weight formula at torus-fixed points of (A^2)^[n,n+1] indexed by partitions with removable corners, with Macaulay2 checks up to size 16.