Smoothing Gorenstein toric Fano 3-folds

Fuente: arXiv
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Autores principales: Corti, Alessio, Hacking, Paul, Petracci, Andrea
Formato: Preprint
Publicado: 2024
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author Corti, Alessio
Hacking, Paul
Petracci, Andrea
author_facet Corti, Alessio
Hacking, Paul
Petracci, Andrea
contents We introduce admissible Minkowski decomposition data (amd) for a 3-dimensional reflexive polytope P. This notion is defined purely in terms of the combinatorics of P. Denoting by X the Gorenstein toric Fano 3-fold whose fan is the spanning fan (a.k.a. face fan) of P, our first result states that amd for P determine a smoothing of X. Our second result amounts to an effective recipe for computing the Betti numbers of the smoothing.
format Preprint
id arxiv_https___arxiv_org_abs_2412_06500
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Smoothing Gorenstein toric Fano 3-folds
Corti, Alessio
Hacking, Paul
Petracci, Andrea
Algebraic Geometry
14J45, 14J33 (Primary), 14M25, 14E15 (Secondary)
We introduce admissible Minkowski decomposition data (amd) for a 3-dimensional reflexive polytope P. This notion is defined purely in terms of the combinatorics of P. Denoting by X the Gorenstein toric Fano 3-fold whose fan is the spanning fan (a.k.a. face fan) of P, our first result states that amd for P determine a smoothing of X. Our second result amounts to an effective recipe for computing the Betti numbers of the smoothing.
title Smoothing Gorenstein toric Fano 3-folds
topic Algebraic Geometry
14J45, 14J33 (Primary), 14M25, 14E15 (Secondary)
url https://arxiv.org/abs/2412.06500