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Donaldson–Thomas theory of 𝒜n×P1

Part of: Projective and enumerative geometry

Published online by Cambridge University Press:  18 August 2009

Davesh Maulik  and
Alexei Oblomkov
Davesh Maulik
Affiliation:
Department of Mathematics, Columbia University, New York, NY 10027, USA (email: [email protected])
Alexei Oblomkov
Affiliation:
Department of Mathematics, Princeton University, Princeton, NJ 08544, USA (email: [email protected])
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Abstract

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We study the relative Donaldson–Thomas theory of 𝒜n×P1, where 𝒜n is the surface resolution of type An singularity. The action of divisor operators in the theory is expressed in terms of operators of the affine algebra on Fock space. Assuming a nondegeneracy conjecture, this gives a complete solution for the theory. The results complete the comparison of this theory with the Gromov–Witten theory of 𝒜n×P1 and the quantum cohomology of the Hilbert scheme of points on 𝒜n.

Keywords

Donaldson–Thomas theoryloop algebrasresolution of quotient surface singularities

MSC classification

Secondary: 14N35: Gromov-Witten invariants, quantum cohomology, Gopakumar-Vafa invariants, Donaldson-Thomas invariants
Type
Research Article
Information
Compositio Mathematica , Volume 145 , Issue 5 , September 2009 , pp. 1249 - 1276
Copyright
Copyright © Foundation Compositio Mathematica 2009

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