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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

Identidades polinomiais da álgebra de octônios / Polynomial identities of the octonion algebra

Meirelles, Fernando Henry 06 June 2014 (has links)
Neste trabalho encontramos bases para as identidades T Z 32 e T Z 22 gradu- adas dos octônios. Utilizando a base obtida no T Z 22 , re-obtivemos uma base para as identidades Z 2 -graduadas das matrizes dois por dois. Também obti- vemos as identidades simultaneamente fracas e antissimétricas ou skew dos octônios na categorias de álgebras alternativas. Também obtivemos as identi- dades antissimétricas da álgebra de Malcev simples de dimensão sete, sl(O). Para ambos os casos estudados de identidades não graduadas dos octônios, mostramos positivamente a conjectura de Shestakov-Zhukavets: O T -ideal de identidades dos octônios coincide com o da álgebra alternativa quadrá- tica. / In this work we find bases for the T Z 32 and T Z 22 graded identities of the octonion algebra. Using the base obtained in the T Z 22 case, we re-obtain a basis for the Z 2 -graded identities of two by two matrices. We also obtained the simultaneously skew and weak identities of the octonions in the category of alternative algebras. In addition we find a basis of identities for the simple Malcev algebra of dimension seven, sl(O). For both skew cases of identities studied we positively show the Shestakov-Zhukavets conjecture: The T -ideal of identities of the octonions coincides with that of the quadratic alternative algebra.
2

Base para as identidades polinomiais das matizes triangulares em blocos com Z2-graduação. / Base for the polynomial identities of triangular shades in blocks with Z2-graduation

NASCIMENTO JÚNIOR, Rivaldo do. 23 July 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-23T14:23:04Z No. of bitstreams: 1 RIVALDO DO NASCIMENTO JÚNIOR - DISSERTAÇÃO PPGMAT 2009..pdf: 371424 bytes, checksum: 6e808f19bfcee3712a8cc10f221c042b (MD5) / Made available in DSpace on 2018-07-23T14:23:04Z (GMT). No. of bitstreams: 1 RIVALDO DO NASCIMENTO JÚNIOR - DISSERTAÇÃO PPGMAT 2009..pdf: 371424 bytes, checksum: 6e808f19bfcee3712a8cc10f221c042b (MD5) Previous issue date: 2009-04 / Neste trabalho apresentamos um modelo para a superálgebra das matrizes triangulares superiores e mostraremos como obter o produto de dois T-ideais como núcleo de um homomorfismo de álgebras. em seguida, mostraremos como obter as identidades polinomiais para a álgebra das matrizes triangulares em blocos com Z2-graduação a partir das identidades ordinárias das álgebras de sua diagonal principal. / In this work we present a general model for the superalgebra of upper triangular matrices and show how to obtain the product of two T-ideals as the kernel of a homomorphism between two algebras. Next, we show how to obtain the polynomial identities for algebra of the block-triangular matrices with Z2-grading from the ordinary identities of the algebras of its main diagonal.

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