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arXiv 2008.09731math.AG
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从八元$\mathbb P^2$到假$\mathbb P^2$的旅程

A journey from the octonionic $\mathbb P^2$ to a fake $\mathbb P^2$

Lev Borisov, Anders Buch, Enrico Fatighenti

摘要:

我们发现了一类以$K^2=3$和$p=q=0$作为八元数射影平面$\mathbb O \mathbb P^2$的特殊线性割的自由$C_{13}$导数的一般型曲面.该族的一个特殊成员具有$A_2$类型的$3$奇点,并且是伪射影平面的商。我们使用\cite{BF20}的技术来定义这个假的射影平面,在其双正则嵌入显式方程。

英文摘要:

We discover a family of surfaces of general type with $K^2=3$ and $p=q=0$ as free $C_{13}$ quotients of special linear cuts of the octonionic projective plane $\mathbb O \mathbb P^2$. A special member of the family has $3$ singularities of type $A_2$, and is a quotient of a fake projective plane. We use the techniques of \cite{BF20} to define this fake projective plane by explicit equations in its bicanonical embedding.

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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