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Search: MSC category 54H15 ( Transformation groups and semigroups [See also 20M20, 22-XX, 57Sxx] )

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1. CJM 2009 (vol 62 pp. 262)

Goresky, Mark; MacPherson, Robert
 On the Spectrum of the Equivariant Cohomology Ring If an algebraic torus \$T\$ acts on a complex projective algebraic variety \$X\$, then the affine scheme \$\operatorname{Spec} H^*_T(X;\mathbb C)\$ associated with the equivariant cohomology is often an arrangement of linear subspaces of the vector space \$H_2^T(X;\mathbb C).\$ In many situations the ordinary cohomology ring of \$X\$ can be described in terms of this arrangement. Categories:14L30, 54H15

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