Codimension 1 distributions on three dimensional hypersurfaces
We show that codimension 1 distributions with at most isolated singularities on threefold hypersurfaces Xd ⊂ P4 of degree d provide interesting examples of stable rank 2 reflexive sheaves. When d ≤ 5, these sheaves can be regarded as smooth points within an irreducible component of the moduli space...
| Autores: | , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2023 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositório: | Portal de Revistas UCR |
| Idioma: | inglês |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/50518 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/matematica/article/view/50518 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Distribuciones holomorfas Haces estables Espacios de moduli Singularidades aisladas Holomorphic distributions Stable sheaves Moduli spaces Isolated singularities |
| Resumo: | We show that codimension 1 distributions with at most isolated singularities on threefold hypersurfaces Xd ⊂ P4 of degree d provide interesting examples of stable rank 2 reflexive sheaves. When d ≤ 5, these sheaves can be regarded as smooth points within an irreducible component of the moduli space of stable reflexive sheaves. Our second goal goes in the reverse direction: we start from a well-known family of stable locally free sheaves and provide examples of codimension 1 distributions of local complete intersection type on Xd. |
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