On the Spectrum of the Equivariant Cohomology Ring

نویسندگان

  • MARK GORESKY
  • ROBERT MACPHERSON
چکیده

If an algebraic torus T acts on a complex projective algebraic variety X then the affine scheme Spec H∗ T (X;C) associated to the equivariant cohomology is often an arrangement of linear subspaces of the vector space H 2 (X;C). In many situations the ordinary cohomology ring of X can be described in terms of this arrangement.

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تاریخ انتشار 2009