arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0005007math.AG
收藏

非紧全纯辛流形的周期映射

Period map for non-compact holomorphically symplectic manifolds

D. Kaledin, M. Verbitsky

摘要:

本文研究了形式环上的全纯辛流形$M$的变形,它不一定是紧的。我们表明(在一些额外的,但温和的,假设$M$),粗变形空间的存在,是光滑的,有限维的,自然嵌入到$H^2(M)$。对于满足$H^1(M,{\cal O}_M) = H^2(M,{\cal O}_M)=0$的全纯辛流形$M$,形式变形的粗模同构于$\Spec\C[[t_1, ..., t_n]]$,其中$t_1$,. $t_n$是$H^2(M)$中的坐标。此修订版包含一个小的改进:第5.1小节中的说明更加详细和严谨。

英文摘要:

We study the deformations of a holomorphic symplectic manifold $M$, not necessarily compact, over a formal ring. We show (under some additional, but mild, assumptions on $M$) that the coarse deformation space exists and is smooth, finite-dimensional and naturally embedded into $H^2(M)$. For a holomorphic symplectic manifold $M$ which satisfies $H^1(M,{\cal O}_M) = H^2(M,{\cal O}_M)=0$, the coarse moduli of formal deformations is isomorphic to $\Spec\C[[t_1, ..., t_n]]$, where $t_1$, ... $t_n$ are coordinates in $H^2(M)$. This revised version contains one minor improvement: exposition in Subsection 5.1 has been made more detailed and rigourous.

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。

↑