Codimension 1 distributions on three dimensional hypersurfaces

Abstract 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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Bibliographic Details
Main Authors: Jardim,Marcos, Santiago,Danilo
Format: Digital revista
Language:English
Published: Centro de Investigaciones en Matemática Pura y Aplicada (CIMPA) y Escuela de Matemática, San José, Costa Rica. 2023
Online Access:http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S1409-24332023000100025
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