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La desigualdad de Von Neumann y la teoría de dilatación

 

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Opened Access La desigualdad de Von Neumann y la teoría de dilatación
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Author: Constantino Oitavén, Carlos
Director: Lacruz Martín, Miguel Benito
Rodríguez Piazza, Luis
Date: 2018-09
Document type: Master's Thesis
Academic Title: Universidad de Sevilla. Máster Universitario en Matemáticas
Abstract: A famous inequality by von Neumann states that if T is a contraction on a Hilbert space and p is a polynomial, then kp(T)k ≤ sup{|p(z)| : z ∈ C, |z| ≤ 1}. As time went on, this inequality has given rise to a large variety of results estimulating th...
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URI: https://hdl.handle.net/11441/79506

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