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Explicit Poincaré duality in the cohomology ring of the SU(2) character variety of a surface

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(2020)cite arxiv:2007.00196Comment: 9 pages, to appear in Expos. Math.

Abstract

We provide an explicit description of the Poincaré dual of each generator of the rational cohomology ring of the $SU(2)$ character variety for a genus $g$ surface with central extension -- equivalently, that of the moduli space of stable holomorphic bundles of rank 2 and odd degree.

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