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math.AG2002★ 7 cited
Orbifold Cohomology as Periodic Cyclic Homology
Vladimir Baranovsky
It known from the work of Feigin-Tsygan, Weibel and Keller that the cohomology groups of a smooth complex variety X can be recovered from (roughly speaking) its derived category of…
math.AG2002
Wilson's grassmannian and a noncommutative Quadric
Vladimir Baranovsky, Victor Ginzburg, Alexander Kuznetsov
Let the group G of m-th roots of unity act on the complex line by multiplication, inducing an action on the algebra, Diff, of polynomial differential operators on the line. Followi…