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arXiv 1902.04875math.AG
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射影复曲面上非退化叶状结构的全局不变分支

Global Invariant Branches of Non-degenerate Foliations on Projective Toric Surfaces

Beatriz Molina-Samper

摘要:

当我们考虑投射复曲面上的弱复曲面型复双曲叶理时,我们证明了孤立的不变分支整体化为代数曲线。要做到这一点,我们通过一个弱环面型叶理的“非退化”的条件下,牛顿多边形的特征。我们还给出了描述之间的关系不变的代数曲线和孤立的不变分支,有效的情况下,复曲面型,通过以下二分法。要么有一个有理首次积分,没有孤立的不变分支,要么我们只有200多条全局不变曲线,它们都扩展了孤立的不变分支。

英文摘要:

We show that the isolated invariant branches globalize to algebraic curves, when we consider weak toric type complex hyperbolic foliations on projective toric ambient surfaces. To do it, we pass through a characterization of weak toric type foliations in terms of "non-degeneracy" conditions, associated to Newton polygons. We also give a description of the relationship between invariant algebraic curves and isolated invariant branches, valid for the case of toric type, by means of the following dichotomy. Either there is a rational first integral and there are no isolated invariant branches or we have only finitely many global invariant curves, all of them extending isolated invariant branches.

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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