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提升公式的积分与微分算子代数的循环同调

Integration of the Lifting formulas and the cyclic homology of the algebras of differential operators

Boris Shoikhet

摘要:

我们将提升上循环$Ψ_{2n+1},Ψ_{2n+3},Ψ_{2n+5},...$([Sh 1],[Sh 2])在Gelfand-Fuks上同调意义下,将$n$维复向量空间上的全纯微分算子的李代数$\Dif_n$上的上循环映射到$n$维复流形$M$上的全纯微分算子的李代数上的上循环(更精确地说,我们在相应的结合代数上积分有限矩阵李代数层上的上循环)。主要结果是Feigin-Tsygan定理[FT 1]的以下显式形式:$H^\bullet_\Lie(\gl^\fin_\infty(\Dif_n);\C) = \wedge^\bullet(Ψ_{2n+1}, Ψ_{2n+3},Ψ_{2n+5}, ...)$。

英文摘要:

We integrate the Lifting cocycles $Ψ_{2n+1},Ψ_{2n+3},Ψ_{2n+5},...$ ([Sh1], [Sh2]) on the Lie algebra $\Dif_n$ of holomorphic differential operators on an $n$-dimensional complex vector space to the cocycles on the Lie algebra of holomorphic differential operators on a holomorphic line bundle $λ$ on an $n$-dimensional complex manifold $M$ in the sense of Gelfand-Fuks cohomology [GF] (more precisely, we integrate the cocycles on the sheaves of the Lie algebras of finite matrices over the corresponding associative algebras). The main result is the following explicit form of the Feigin-Tsygan theorem [FT1]: $H^\bullet_\Lie(\gl^\fin_\infty(\Dif_n);\C) = \wedge^\bullet(Ψ_{2n+1}, Ψ_{2n+3},Ψ_{2n+5}, ...)$.

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