Derived $F$-zips

Fuente: arXiv
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Main Author: Yaylali, Can
Format: Preprint
Published: 2022
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author Yaylali, Can
author_facet Yaylali, Can
contents We define derived versions of $F$-zips and associate a derived $F$-zip to any proper, smooth morphism of schemes in positive characteristic. We analyze the stack of derived $F$-zips and certain substacks. We make a connection to the classical theory and look at problems that arise when trying to generalize the theory to derived $G$-zips and derived $F$-zips associated to lci morphisms. As an application, we look at Enriques-surfaces and analyze the geometry of the moduli stack of Enriques-surfaces via the associated derived $F$-zips. As there are Enriques-surfaces in characteristic $2$ with non-degenerate Hodge-de Rham spectral sequence, this gives a new approach, which could previously not be obtained by the classical theory of $F$-zips.
format Preprint
id arxiv_https___arxiv_org_abs_2208_01517
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Derived $F$-zips
Yaylali, Can
Algebraic Geometry
14J10, 14F08, 14A30 (primary), 14F40, 14J28 (secondary)
We define derived versions of $F$-zips and associate a derived $F$-zip to any proper, smooth morphism of schemes in positive characteristic. We analyze the stack of derived $F$-zips and certain substacks. We make a connection to the classical theory and look at problems that arise when trying to generalize the theory to derived $G$-zips and derived $F$-zips associated to lci morphisms. As an application, we look at Enriques-surfaces and analyze the geometry of the moduli stack of Enriques-surfaces via the associated derived $F$-zips. As there are Enriques-surfaces in characteristic $2$ with non-degenerate Hodge-de Rham spectral sequence, this gives a new approach, which could previously not be obtained by the classical theory of $F$-zips.
title Derived $F$-zips
topic Algebraic Geometry
14J10, 14F08, 14A30 (primary), 14F40, 14J28 (secondary)
url https://arxiv.org/abs/2208.01517