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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

Versões das propriedades A e B de Lindenstrauss para operadores compactos

Brito, Leonardo da Silva, 92-99307-3945 23 March 2018 (has links)
Submitted by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2018-05-16T14:49:10Z No. of bitstreams: 2 Dissertação.pdf: 26629967 bytes, checksum: d8fcb48ed60770cf6ba7a8936168718d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2018-05-16T14:49:24Z (GMT) No. of bitstreams: 2 Dissertação.pdf: 26629967 bytes, checksum: d8fcb48ed60770cf6ba7a8936168718d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-05-16T14:49:24Z (GMT). No. of bitstreams: 2 Dissertação.pdf: 26629967 bytes, checksum: d8fcb48ed60770cf6ba7a8936168718d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-03-23 / CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico / The main goal in this dissertation is to study the versions for compact operators of Lindenstrauss property A and B. In the course of our work, we present results concerning weak-star topology, Schauder basis, approximation properties, Banach spaces that locally depend upon finitely many coordinates, strictly convex spaces, uniformly convex spaces, among others. In 2014 Miguel Martín answered positively the following question: Are there compact operators between Banach spaces that can not be approximated by compact operators that attain their norms? In order to do that, he introduced two properties called properties Ak and Bk or versions for compact operators of Lindenstrauss properties. In this dissertation we present some results regarding Lindenstrauss properties A and B, and we also provide several results regarding properties Ak and Bk. / O objetivo desta dissertação é estudar as versões das propriedades A e B de Lindenstrauss para operadores compactos. No decorrer do nosso trabalho, apresentamos resultados sobre a topologia fraca-estrela, bases de Schauder, propriedades da aproximação, espaços de Banach cuja norma depende localmente de finitas coordenados, espaço estritamente convexo, espaço uniformemente convexo, dentre outros. Em 2014 Miguel Martín publicou um artigo respondendo de maneira positiva a seguinte pergunta: Existem operadores compactos entre espaços de Banach que não podem ser aproximados por operadores compactos que atingem a norma? Ao fazer isso, introduziu, no mesmo trabalho, duas propriedades chamadas de propriedades Ak e Bk ou versões para operadores compactos das propriedades de Lindenstrauss. Nesta dissertação, são apresentados de maneira detalhada resultados relacionados às propriedades A e B de Lindenstrauss e propriedades Ak e Bk.

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