Period Map for Non-Compact Holomorphically Symplectic Manifolds

Period Map for Non-Compact Holomorphically Symplectic Manifolds
复制标题

非紧全纯辛流形的周期图

DOI:
--
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
M. Verbitsky
M. Verbitsky
中科院分区:
--
文献类型:
--
作者:
D. Kaledin;M. Verbitsky

文献摘要

被引文献

相似文献

摘要:我们研究了形式环上不一定是紧的全纯辛流形X的变形。我们总是假设X和辛形式Ω都是上的代数 $mathbb{C}。$我们证明(在X上的一些附加的但温和的假设下)这对的粗形变空间 $LEFT_LEFT_LANGE{X,Omega} 明灯 角$存在且光滑,有限维,自然嵌入到H2(X)中。特别地,对于满足以下条件的代数全纯辛流形X $H^I(数学{O}_X)=0$ 对于所有的形变,形式变形的粗模同构于Spec $mathbb{C}Left[kern-0.15emLeft[{t_1,ldots,t_n} 右]克恩-0.15em 晚上],$ 哪里 $t_1,ldots t_n$是H2(X)中的坐标。
Abstract.We study the deformations of a holomorphic symplectic manifold X, not necessarily compact, over a formal ring. We always assume both X and the symplectic form Ω to be algebraic over $mathbb{C}.$ We show (under some additional, but mild, assumptions on X) that the coarse deformation space of the pair $leftlangle {X,Omega } ight angle $ exists and is smooth, finite-dimensional and naturally embedded into H2(X). In particular, for an algebraic holomorphic symplectic manifold X which satisfies $H^i (mathcal{O}_X ) = 0$ for all i > 0, the coarse moduli of formal deformations is isomorphic to Spec $mathbb{C}left[kern-0.15emleft[ {t_1 , ldots ,t_n } ight]kern-0.15em ight],$ where $t_1 , ldots t_n $ are coordinates in H2(X).