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Results tagged with equivariant-cohomology
Search options questions only
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user 425
12
votes
1
answer
321
views
Passing from T-equivariant to G-equivariant cohomology
Let G=GLn(ℂ) and let T be a maximal torus. Let X be a topological space with a G-action. My question is: when is the canonical map $$H^*_G(X;\mathbb{Z})\to H^*_T(X;\mathbb{Z})$$ injective?
Some remar …
- 8,866
5
votes
1
answer
377
views
What is the circle-equivariant cohomology of the real projective plane
Let P denote the real projective plane. It has an action of the circle group S1. (e.g. Let S1 act on the 2-sphere by rotations about an axis, then this action descends to the quotient P). I have a sim …
- 8,866
5
votes
3
answers
673
views
Deequivariantisation of indecomposable sheaves
Let G be a connected group acting on a space X. All spaces should be reasonable, so e.g. G is a complex affine algebraic group acting on an algebraic variety X, with everything done using the usual co …
- 8,866