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On semi-infinite cohomology of finite-dimensional graded algebras
Published online by Cambridge University Press: 23 February 2010
Abstract
We describe a general setting for the definition of semi-infinite cohomology of finite-dimensional graded algebras, and provide an interpretation of such cohomology in terms of derived categories. We apply this interpretation to compute semi-infinite cohomology of some modules over the small quantum group at a root of unity, generalizing an earlier result of Arkhipov (posed as a conjecture by B. Feigin).
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- Research Article
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- Copyright © Foundation Compositio Mathematica 2010
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