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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Equações polinomiais e matrizes circulantes

Oliveira Júnior, Pedro Jerônimo Simões de 10 July 2015 (has links)
Submitted by ANA KARLA PEREIRA RODRIGUES (anakarla_@hotmail.com) on 2017-08-30T14:02:41Z No. of bitstreams: 1 arquivototal.pdf: 1530287 bytes, checksum: bd20f7e7a563f1aa0ad40d276bc400f9 (MD5) / Approved for entry into archive by Viviane Lima da Cunha (viviane@biblioteca.ufpb.br) on 2017-08-30T14:19:18Z (GMT) No. of bitstreams: 1 arquivototal.pdf: 1530287 bytes, checksum: bd20f7e7a563f1aa0ad40d276bc400f9 (MD5) / Made available in DSpace on 2017-08-30T14:19:18Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1530287 bytes, checksum: bd20f7e7a563f1aa0ad40d276bc400f9 (MD5) Previous issue date: 2015-07-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / In this work we discuss the procedures for solving polynomials equations of degree n 4; n 2 N via circulant matrices, highlighting a new perspective to obtain the Cardano- Tartaglia formulae. This brings up a new look on connected subjects, including the elimination of the term of degree (n􀀀1) and the characterization of real polynomials with all real roots. The method is based on searching a circulant matrix whose characteristic polynomial is identical to the one with the same roots we desire to nd. This approach provides us a simple and uni ed method for all equations through degree four. / Neste trabalho abordamos via matrizes circulantes a resolução de equações polinomiais de grau n 4; n 2 N , destacando uma nova perspectiva para obtenção das fórmulas de Cardano-Tartaglia. Além disso, ele oportuniza uma nova maneira de olhar para questões conexas, incluindo a eliminação do termo de grau (n 􀀀 1) e a caracterização de equações reais com todas as raízes reais. O método é baseado na busca de uma matriz circulante cujo polinômio característico seja idêntico ao das raízes que queremos encontrar. Essa metodologia nos fornece um método simples e uni cado para todas equações até quarto grau.

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