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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

Álgebras de Loop e Cohomologia Galoisiana

Santos, Fernando Junior Soares dos, 92-99293-8011 06 July 2017 (has links)
Submitted by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-08-30T15:24:40Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação - Fernando Junior S. Santos.pdf: 885469 bytes, checksum: 810e1dae7c213671c12b8d4f9c0ff331 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-08-30T15:29:43Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação - Fernando Junior S. Santos.pdf: 885469 bytes, checksum: 810e1dae7c213671c12b8d4f9c0ff331 (MD5) / Made available in DSpace on 2017-08-30T15:29:43Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação - Fernando Junior S. Santos.pdf: 885469 bytes, checksum: 810e1dae7c213671c12b8d4f9c0ff331 (MD5) Previous issue date: 2017-07-06 / FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas / In this work we study how certain types of loop algebras can be classi ed with the help of Galois cohomology. In the rst part of the paper we expose the theory of nitedimensional Lie algebras and introduce the notion of a loop algebra. Subsequently we explain the relationship of loop algebras with the S=R-forms of g(R), where R is the ring of Laurent polynomials in one variable over an algebraically closed eld and S an extension of the ring. In the second chapter the theory of Galois cohomology will be developped. Finally we will show how isomorphism classes of loop algebras can be represented by elements of sets of Galois cohomology. / Neste trabalho se estuda como certos tipos de álgebras de loop podem ser classi - cados com a ajuda da cohomologia galoisiana. Na primeira parte do trabalho é exposta a teoria de álgebras de Lie de dimensão nita e é introduzida a noção de álgebra de loop. Em seguida, é explicado a relação das álgebras de loop com as S=R formas de g(R), para R o anel de polinômios de Laurent em uma variável sobre um corpo algebricamente fechado e S uma extensão deste anel. No capítulo seguinte será apresentado a teoria da cohomologia galoisiana. No nal será mostrado como classes de isomor smo de álgebras de loop podem ser representados por elementos de conjuntos da cohomologia galoisiana.

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