Abstract
We prove that the center of a regular block of parabolic category for the general linear Lie algebra is isomorphic to the cohomology algebra of a corresponding Springer fiber. This was conjectured by Khovanov [K]. We also find presentations for the centers of singular blocks, which are cohomology algebras of Spaltenstein varieties
Citation
Jonathan Brundan. "Symmetric functions, parabolic category , and the Springer fiber." Duke Math. J. 143 (1) 41 - 79, 15 May 2008. https://doi.org/10.1215/00127094-2008-015
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