O ideal jacobiano de um arranjo de hiperplanos

• Autor(a) principal: Borges, João Pedro Viana Correia
• Data de Publicação: 2023
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/123456789/31378
• topic: Derivações logarítmicas - Módulo; Ideal jacobiano; Arranjos de hiperplanos; Teoria da redução de ideais; Jacobian ideal; Hyperplane arrangements; Module of logarithmic derivations; Reduction of ideals; Saturation; CNPQ::CIENCIAS EXATAS E DA TERRA::MATEMATICA

In this work, we are interested in exploring properties of the Jacobian ideal of a form f defined by a hyperplane arrangement A in n-dimensional affine space over a field of characteristic zero. We aim to present two main results: the Jacobian ideal Jf as a minimal reduction of the ideal I, defined by the (m− 1)-products of the linear forms defined by A, when this is an almost generic arrangement, and the Rose- Terao- Yuzvinski theorem, a result which gives us the homological dimension of the module of logarithmic derivations of f, in the case where A is generic. To this end, we introduce important concepts from Commutative Algebra, such as Rees Algebra, special fiber, and reduction of an ideal I, as well as the relevant algebraic invariants: saturation index of an ideal and the Castelnuovo-Mumford regularity of a module.