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arXiv 1809.04470math.AGmath.CO
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关于伪加权射影平面的变形与突变的注记

A note on deformations and mutations of fake weighted projective planes

Irem Portakal

摘要:

Hacking和Prokhorov已经证明,如果具有商奇点且自相交数为9的射影曲面X对射影平面具有光滑性,则X是加权的射影平面的Q-Gorenstein变形的一般纤维,该加权的投影平面给出马尔可夫方程的解。这个结果已经被理解和推广的组合突变的Fano三角形的Akhtar,科茨,Galkin,和Kasprzyk。在这篇文章中,我们研究了这一结果,利用极化的T-簇,并描述了相关的变形明确的某些Minkowski和的所谓的divisorial多面体。

英文摘要:

It has been shown by Hacking and Prokhorov that if the projective surface X with quotient singularities and self-intersection number 9 has a smoothing to the projective plane, then X is the general fiber of a Q-Gorenstein deformation of the weighted projective plane with weights giving solutions to the Markov equation. This result has been understood and generalized by combinatorial mutations of Fano triangles by Akhtar, Coates, Galkin, and Kasprzyk. In this note, we study this result by utilizing polarized T-varieties and describe the associated deformation explicitly in terms of certain Minkowski summands of so-called divisorial polytopes.

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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