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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2024.tde-15042024-125401
Document
Author
Full name
Zaqueu Cristiano Moreira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2024
Supervisor
Committee
Ferreira, Vitor de Oliveira (President)
Herbera, Dolors
Molina, Mercedes Siles
Title in Portuguese
Anéis de quocientes graduados de anéis graduados por grupoide
Keywords in Portuguese
Anel de quocientes graduado de Martindale
Anel de quocientes graduado maximal
Anel graduado por grupoide
Abstract in Portuguese
Neste trabalho, estudamos os anéis de quocientes à direita (à esquerda, simétrico) graduados maximal e de Martindale de anéis graduados por grupoide. Para definirmos e provarmos propriedades desses anéis de quocientes graduados, generalizamos vários conceitos e resultados da Teoria de Anéis e da Teoria de Anéis Graduados por Grupo para o contexto graduado por grupoide, alguns dos quais ainda não existiam na literatura. Caracterizamos quando o anel de quocientes à direita graduado maximal é anel gr-regular de von Neumann e quando é anel gr-semissimples. Motivados pelo exemplo de categorias pré-aditivas pequenas, definimos o que seriam as categorias de quocientes à direita (à esquerda, simétrica) maximal e de Martindale de uma categoria pré-aditiva.
Title in English
Graded rings of quotients of groupoid graded rings
Keywords in English
Graded Martindale ring of quotients
Graded maximal ring of quotients
Groupoid graded ring
Abstract in English
In this work, we study the graded maximal and the graded Martindale right (left, symmetric) rings of quotients of groupoid graded rings. In order to define and prove properties of these graded rings of quotients, we generalized several concepts and results from Ring Theory and Group Graded Ring Theory to the groupoid graded context, some of which did not exist in the literature yet. We characterize when the graded maximal right ring of quotients is a von Neumann gr-regular ring and when it is a gr-semisimple ring. Motivated by the example of small preadditive categories, we defined what would be the maximal and the Martindale right (left, symmetric) category of quotients of a preadditive category.
 
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Publishing Date
2024-04-26
 
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