Formality of equivariant intersection cohomology of algebraic varieties

Weber, Andrzej

doi:10.1090/S0002-9939-03-07138-7

Formality of equivariant intersection cohomology of algebraic varieties
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Proc. Amer. Math. Soc. 131 (2003), 2633-2638 Request permission

Abstract:

We present a proof that the equivariant intersection cohomology of any complete algebraic variety acted by a connected algebraic group $G$ is a free module over $H^{*}(BG)$.

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