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Doctoral Thesis
DOI
https://doi.org/10.11606/T.45.2019.tde-12092019-133120
Document
Author
Full name
Edite Taufer
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2018
Supervisor
Committee
Milies, Francisco Cesar Polcino (President)
Ferraz, Raul Antonio
Hoyos, Mariana Garabini Cornelissen
Paques, Antonio
Rodrigues, Rodrigo Lucas
Title in Portuguese
Ideais em anéis de matrizes finitos e aplicações à Teoria de Códigos
Keywords in Portuguese
Álgebra de grupo
Anel de matrizes
Código de grupo
Códigos corretores de erros
Corpo finito
Melhor código
Abstract in Portuguese
Neste trabalho damos uma descrição completa dos ideais à esquerda em anéis de matrizes sobre corpos finitos. Aplicamos estes resultados ao estudo de álgebras de grupo de uma família particular de grupos indecomponíveis e mostramos como construir códigos corretores de erros como ideais destas álgebras. Em particular, exibimos exemplos de códigos tais que, para um dado comprimento e uma dada dimensão, têm o melhor peso possível.
Title in English
Ideals in finite matrix rings and applications to Coding Theory
Keywords in English
Best code
Error correcting codes
Finite field
Group algebra
Group code
Matrix ring
Abstract in English
In this work we give a complete description of the left ideals in the full ring of matrices over a finite field. We apply these results to the study of group algebras of a given family of indecomposable groups and show how to construct error correcting codes as ideals of these algebras. In particular, we exhibit examples of codes such that, for a given length and a given dimension, have the best possible weight.
 
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Tese_Edite.pdf (827.99 Kbytes)
Publishing Date
2019-09-12
 
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