Journal
GEOMETRY & TOPOLOGY
Volume 18, Issue 1, Pages 291-326Publisher
GEOMETRY & TOPOLOGY PUBLICATIONS
DOI: 10.2140/gt.2014.18.291
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- Sabanci Universitesi
- Scientific and Technological Research Council of Turkey (TUBITAK) [112T233]
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We introduce the notion of Q-filtrable varieties: projective varieties with a torus action and a finite number of fixed points, such that the cells of the associated Bialynicki-Birula decomposition are all rationally smooth. Our main results develop GKM theory in this setting. We also supply a method for building nice combinatorial bases on the equivariant cohomology of any Q-filtrable GKM variety. Applications to the theory of group embeddings are provided.
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