Generalized affine-paving conjecture for cohomologically pure varieties
Generalized affine-paving conjecture for cohomologically pure varieties
Let be a projective algebraic variety over admitting an action of a torus such that the fixed points and the one-dimensional orbits are finite. For a total order on the vertices of the associated graph , let be the locally closed pieces obtained inductively from the attracting sets of the vertices. A generalized affine paving is a decomposition into locally closed subvarieties having the same compactly supported cohomology as an affine space .
Generalized affine-paving conjecture. If is a total order such that , then the decomposition of according to is a generalized affine paving.
The conjecture proposes a general method for constructing affine-paving-like decompositions from torus fixed-point and one-dimensional-orbit data. Its general status is open.
Sources & referencesView supporting material
Primary source
Zongbin Chen, “Truncated affine grassmannians and truncated affine Springer fibers for GL_3”, arXiv:1401.1930 (2014).
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