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arXiv 0707.4528math.AGmath.QA
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复流形上基于霍赫希尔德同调的积分

Integration over complex manifolds via Hochschild homology

Ajay C. Ramadoss

摘要:

给定连通紧致复流形X上的全纯向量丛$\cale$,[FLS]构造了$\hh{2n}{\compl}$上的$\compl$ -线性泛函$I_{\cale}$.这是通过使用拓扑量子力学在$\cale$上的全纯微分算子层的第0个完全霍赫希尔德同调$\choch{0}{(\dif(\cale))}$上构造线性泛函来完成的。证明了当$\cale$具有非零欧拉特征线时,该泛函是$\int_X$.他们推测这个泛函是所有$\cale$的$\int_X$。随后的工作[拉姆]的作者证明,线性功能$I_{\cale}$是独立的向量丛$\cale$。本文在文献[Ram]的基础上证明了对于任意连通紧致复流形X上的全纯向量丛$\cale$,$I_{\cale}=\int_X$是完备的.这是用一个从几何学的角度来看非常自然的论点来完成的。这个论证使我们能够将[FLS]中的构造推广到任意连通复流形Y上的任意全纯向量丛$\cale$在$\text{H}^{2n}_{c}(Y,\compl)$上的线性泛函$I_{\cale}$的构造,并证明了$I_{\cale} = \int_Y$ .我们还推广了[Ram]关于$I_{\cale}$的“环状同源类似物”的结果。

英文摘要:

Given a holomorphic vector bundle $\cale$ on a connected compact complex manifold X, [FLS] construct a $\compl$-linear functional $I_{\cale}$ on $\hh{2n}{\compl}$. This is done by constructing a linear functional on the 0-th completed Hochschild homology $\choch{0}{(\dif(\cale))}$ of the sheaf of holomorphic differential operators on $\cale$ using topological quantum mechanics. They show that this functional is $\int_X$ if $\cale$ has non zero Euler characteristic. They conjecture that this functional is $\int_X$ for all $\cale$. A subsequent work [Ram] by the author proved that the linear functional $I_{\cale}$ is independent of the vector bundle $\cale$. This note builds upon the work in [Ram] to prove that $I_{\cale}=\int_X$ for an arbitrary holomorphic vector bundle $\cale$ on an arbitrary connected compact complex manifold X. This is done using an argument that is very natural from the geometric point of view. This argument enables us to extend the construction in [FLS] to a construction of a linear functional $I_{\cale}$ on $\text{H}^{2n}_{c}(Y,\compl)$ for an arbitrary holomorphic vector bundle $\cale$ on an arbitrary connected complex manifold Y and prove that $I_{\cale} = \int_Y$. We also generalize a result of [Ram] pertaining to "cyclic homology analogs" of $I_{\cale}$.

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