arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/9803135math.DG
收藏

紧诣零流形的Dolbeault上同调

Dolbeault Cohomology of compact Nilmanifolds

S. Console, A. Fino

摘要:

设$M= G/Γ$是一个具有不变复结构的紧致零流形.证明了在$M$上具有不变复结构的模空间${\cal C} ({\frak g})$的任意连通分支的开集上,$M$的Dolbeault上同调同构于与$G$的李代数的复化$\cg^\C$相关的微分双阶化代数的Dolbeault上同调.为了得到这一结果,我们首先证明了具有有理不变式复结构的紧致流形的上述同构。这是使用一个递减系列相关联的复结构和博雷尔谱序列的相应的一组全纯纤维化。然后我们将Kodaira-Spencer理论应用于复结构的变形。

英文摘要:

Let $M= G/Γ$ be a compact nilmanifold endowed with an invariant complex structure. We prove that, on an open set of any connected component of the moduli space ${\cal C} ({\frak g})$ of invariant complex structures on $M$, the Dolbeault cohomology of $M$ is isomorphic to the one of the differential bigraded algebra associated to the complexification $\cg^\C$ of the Lie algebra of $G$. To obtain this result, we first prove the above isomorphism for compact nilmanifolds endowed with a rational invariant complex structure. This is done using a descending series associated to the complex structure and the Borel spectral sequences for the corresponding set of holomorphic fibrations. Then we apply the theory of Kodaira-Spencer for deformations of complex structures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑