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arXiv · 1604.00745

Classification of globally F-regular $F$-sandwiches of Hirzebruch surfaces

Tadakazu Sawada
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Abstract

Let $X$ be a smooth variety over an algebraically closed field of positive characteristic. An $F$-sandwich of $X$ is a normal variety $Y$ through which the relative Frobenius morphism of $X$ factors as $F:X\rightarrow Y \rightarrow X$. In this paper, we give a classification of globally F-regular $F$-sandwiches of Hirzebruch surfaces.

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Tadakazu Sawada. 2016-04-04. Classification of globally F-regular $F$-sandwiches of Hirzebruch surfaces. https://arxiv.org/abs/1604.00745

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