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arXiv 1901.05656math.AGmath.CV
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transmittal射影叶层的对称性

Symmetries of Transversely Projective Foliations

F Lo Bianco, E Rousseau, F. Touzet

摘要:

给定复射影流形X上的(奇异,余维数为1)全纯叶理F,研究了X的伪自同构群PsAut(X,F)保持F,更精确地说,我们得到了PsAut(X,F)的有限指数子群不动点于F的所有叶的充分条件.事实证明,如果F允许一个(可能退化)的横向双曲结构,则满足该性质;此外,在此设置中,我们证明了所有的整条曲线是代数退化的。我们证明了同样的结果,在更一般的设置的横向投影叶理,在额外的假设下,非负Kodaira维数和一般有限态射f:X $\rightarrow$ X的叶理f*F是由一个封闭的理性1-形式定义的。

英文摘要:

Given a (singular, codimension 1) holomorphic foliation F on a complex projective manifold X, we study the group PsAut(X, F) of pseudo-automorphisms of X which preserve F ; more precisely, we seek sufficient conditions for a finite index subgroup of PsAut(X, F) to fix all leaves of F. It turns out that if F admits a (possibly degenerate) transverse hyperbolic structure , then the property is satisfied; furthermore, in this setting we prove that all entire curves are algebraically degenerate. We prove the same result in the more general setting of transversely projective foliations, under the additional assumptions of non-negative Kodaira dimension and that for no generically finite morphism f : X $\rightarrow$ X the foliation f*F is defined by a closed rational 1-form.

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。

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