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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

O espectro dos operadores Toeplitz e operadores Toeplitz complexo simétricos / Espectrum of Toeplitz operators and complex symmetric operators

Navarro Gonzalez, Karina 02 March 2018 (has links)
Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2018-06-25T17:05:26Z No. of bitstreams: 1 texto completo.pdf: 1015662 bytes, checksum: 7494a65a5f15ab8325f4a81613dec9c3 (MD5) / Made available in DSpace on 2018-06-25T17:05:26Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1015662 bytes, checksum: 7494a65a5f15ab8325f4a81613dec9c3 (MD5) Previous issue date: 2018-03-02 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho estuda-se ferramentas sobre a importância do espaço Hardy- Hilbert e da análise funcional para abordagem do espectro do operador Toeplitz. Durante o estudo, é explícito que o espectro de tal operador depende de seu símbolo, estudando o espectro para o operador Toeplitz analítico(símbolo analítico), coanalítico(conjugado de seu símbolo analítico), autoadjunto(símbolo real) e operador Toeplitz com símbolo contínuo. Em seguida, introduz-se definições do operador simétrico complexo, para logo responder perguntas como: Quando um operador Toeplitz é simétrico complexo sobre o espaço de Hilbert H 2 ?, quando um operador Toeplitz simétrico complexo é normal? / In this work we study the importance of the Hardy-Hilbert space and the functional analysis to approach the spectrum of the Toeplitz operator, during the study, it is explicit that the spectrum of such operators depend on its symbol, studying the spectrum for the analytical Toeplitz operator (analytical symbol), coanalytic (conjugate of its analytic symbol), autoadjunto (real symbol) and Toeplitz operator with continuous symbol. Next, we introduce the definition of a complex symmetric operator and then answer questions such as: When a Toeplitz operator is complex symmetric on the Hilbert space H 2 ?, when a complex symmetric Toeplitz operator is normal?

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