The integral cohomology of the Hilbert scheme of points on a surface
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Abstract We show that if X is a smooth complex projective surface with torsion-free cohomology, then the Hilbert scheme $X^{[n]}$ has torsion-free cohomology for every natural number n. This extends earlier work by Markman on the case of Poisson surfaces. The proof uses Gholampour-Thomas’s reduced obstruction theory for nested Hilbert schemes of surfaces.
2013 ◽
Vol 149
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pp. 481-494
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pp. 1450056
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1995 ◽
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