Cohomology of Spaltenstein varieties
classification
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cohomologyalgebraspaltensteinannihilatedconcinidescriptionfiberfixed
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We give a presentation for the cohomology algebra of the Spaltenstein variety of all partial flags annihilated by a fixed nilpotent matrix, generalizing the description of the cohomology algebra of the Springer fiber found by De Concini, Procesi and Tanisaki.
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