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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 e polinômios centrais para álgebras de matrizes. / Identities and central polynomials for matrix algebras.

BERNARDO, Leomaques Francisco Silva. 23 July 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-23T14:58:20Z No. of bitstreams: 1 LEOMAQUES FRANCISCO SILVA BERNARDO - DISSERTAÇÃO PPGMAT 2009..pdf: 656966 bytes, checksum: 9ca0422e8cc572aa2c43d542260ef401 (MD5) / Made available in DSpace on 2018-07-23T14:58:20Z (GMT). No. of bitstreams: 1 LEOMAQUES FRANCISCO SILVA BERNARDO - DISSERTAÇÃO PPGMAT 2009..pdf: 656966 bytes, checksum: 9ca0422e8cc572aa2c43d542260ef401 (MD5) Previous issue date: 2009-06 / Capes / Neste trabalho apresentamos um estudo sobre identidades e polinômios centrais para a álgebra das matrizes. Mais precisamente, apresentamos a descrição das identidades e polinômios centrais Zn-graduados e Z-graduados para a álgebra Mn(K) (matizes n x n sobre um corpo K), quando característica de K é zero. Depois, apresentamos a descrição dos polinômios centrais ordinários para a álgebra M2(K) (matrizes 2 x 2 sobre K), também para um corpo de característica zero. Finalmente, apresentamos duas construções clássicas de polinômios centrais para Mn(K), que surgiram como resposta a um problema sugerido por Kaplansky em 1956 sobre a existência de polinômios não triviais para esta álgebra. / In this work we study polynomial identities and central polynomials for matrix algebras. More precisely, we present the description of the identities and Zn-graded and Z-graded central polynomials for the algebra Mn(K) (the n x n matrices over the field K) when the characteristic of K is zero. Afterwards we give the description or the ordinary (nongraded) central polynomials for the algebra m2(K), the 2 x 2 matrices over K, assuming the field of characteristic zero. Finally, we present two classical constructions of central polynomials for Mn(K). These appeared as an answer to a problem posed by Kaplansky in 1956 about the existence of nontrivial central polynomials for that algebra.

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