Interpolation and moduli spaces of vector bundles on very general blowups of the projective plane

Fuente: arXiv
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Autores principales: Coskun, Izzet, Huizenga, Jack
Formato: Preprint
Publicado: 2023
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author Coskun, Izzet
Huizenga, Jack
author_facet Coskun, Izzet
Huizenga, Jack
contents In this paper, we study certain moduli spaces of vector bundles on the blowup of the projective plane in at least 10 very general points. Moduli spaces of sheaves on general type surfaces may be nonreduced, reducible and even disconnected. In contrast, moduli spaces of sheaves on minimal rational surfaces and certain del Pezzo surfaces are irreducible and smooth along the locus of stable bundles. We find examples of moduli spaces of vector bundles on more general blowups of the projective plane that are disconnected and have components of different dimensions. In fact, assuming the SHGH Conjecture, we can find moduli spaces with arbitrarily many components of arbitrarily large dimension.
format Preprint
id arxiv_https___arxiv_org_abs_2306_06175
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Interpolation and moduli spaces of vector bundles on very general blowups of the projective plane
Coskun, Izzet
Huizenga, Jack
Algebraic Geometry
Primary: 14J60, 14J26. Secondary: 14D20
In this paper, we study certain moduli spaces of vector bundles on the blowup of the projective plane in at least 10 very general points. Moduli spaces of sheaves on general type surfaces may be nonreduced, reducible and even disconnected. In contrast, moduli spaces of sheaves on minimal rational surfaces and certain del Pezzo surfaces are irreducible and smooth along the locus of stable bundles. We find examples of moduli spaces of vector bundles on more general blowups of the projective plane that are disconnected and have components of different dimensions. In fact, assuming the SHGH Conjecture, we can find moduli spaces with arbitrarily many components of arbitrarily large dimension.
title Interpolation and moduli spaces of vector bundles on very general blowups of the projective plane
topic Algebraic Geometry
Primary: 14J60, 14J26. Secondary: 14D20
url https://arxiv.org/abs/2306.06175