Grassmann技术在双曲性、Chow等价性和Seshadri常数中的应用

IF 0.9 1区 数学 Q2 MATHEMATICS Journal of Algebraic Geometry Pub Date : 2021-07-19 DOI:10.1090/JAG/786
Eric Riedl, David H Yang
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引用次数: 10

摘要

在本文中,我们进一步发展了一种Grassmann技术,用于证明关于非常一般的超曲面的结果,并给出了三个应用。首先,我们提供了Kobayashi猜想的简短证明,给出了先前在Green–Griffiths–Lang猜想上建立的结果。其次,我们完全解决了Chen、Lewis和Sheng关于一个非常一般的超曲面上Chow等价点空间维度的猜想,证明了剩余的情况,并为许多先前已知的情况提供了一个简短的替代证明。最后,我们将非常一般点的Seshadri常数与非常一般超曲面的任意点的Seshadri常数联系起来。
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Applications of a Grassmannian technique to hyperbolicity, Chow equivalency, and Seshadri constants
In this paper we further develop a Grassmannian technique used to prove results about very general hypersurfaces and present three applications. First, we provide a short proof of the Kobayashi conjecture given previously established results on the Green–Griffiths–Lang conjecture. Second, we completely resolve a conjecture of Chen, Lewis, and Sheng on the dimension of the space of Chow-equivalent points on a very general hypersurface, proving the remaining cases and providing a short, alternate proof for many of the previously known cases. Finally, we relate Seshadri constants of very general points to Seshadri constants of arbitrary points of very general hypersurfaces.
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来源期刊
CiteScore
2.70
自引率
5.60%
发文量
23
审稿时长
>12 weeks
期刊介绍: The Journal of Algebraic Geometry is devoted to research articles in algebraic geometry, singularity theory, and related subjects such as number theory, commutative algebra, projective geometry, complex geometry, and geometric topology. This journal, published quarterly with articles electronically published individually before appearing in an issue, is distributed by the American Mathematical Society (AMS). In order to take advantage of some features offered for this journal, users will occasionally be linked to pages on the AMS website.
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