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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

Sobre grupos unicamente cobertos / On uniquely covered groups

JardÃnia Sobrinho Goes 20 December 2011 (has links)
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / Este trabalho à baseado no artigo "Uniquely Covered Groups" de M. A. Brodie, que investiga grupos finitos que possuem uma Ãnica cobertura irredundante por subgrupos prÃprios. O resultado principal obtido por M. A. Brodie assegura que um grupo finito e nÃo nilpotente G à unicamente coberto se, e somente se, G/Z(G) à um grupo nÃo abeliano de ordem pq, onde p e q sÃo primos distantes e {x,Z(G) à cÃclico para todo x â G. Nosso propÃsito à apresentar a demonstraÃÃo e uma aplicaÃÃo deste teorema. / This work is based on the article "Uniquely Covered Groups" due to M. A. Brodie, which investigates finite groups that have a single irredundante coveraging by subgroups. The main result obtained by M. A. Brodie asserts that a non-nilpotent finite group G is uniquely covered if and only if, G/Z(G) is a non-Abelian group of order pq, where p and q are distinct primes and {x,Z(G) is cyclic for every x â G. Our purpose is to present the proof and application of this theorem.

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