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arXiv 2102.04713math.AGmath.GT
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一次实del Pezzo曲面上的两类实直线

Two kinds of real lines on real del Pezzo surfaces of degree 1

Sergey Finashin, Viatcheslav Kharlamov

摘要:

我们展示了如何在一个真正的del Pezzo表面的度1的真正的线可以分为两个物种,椭圆和双曲,通过一定的区别,内在定义,销结构的表面上的真正的轨迹。我们证明了这种分裂是不变的下真正的自同构和真正的变形的表面,和双曲和椭圆线的总数之间的差异总是等于16。

英文摘要:

We show how the real lines on a real del Pezzo surface of degree 1 can be split into two species, elliptic and hyperbolic, via a certain distinguished, intrinsically defined, Pin-structure on the real locus of the surface. We prove that this splitting is invariant under real automorphisms and real deformations of the surface, and that the difference between the total numbers of hyperbolic and elliptic lines is always equal to 16.

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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