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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

[en] NON-ASYMPTOTIC RANDOM MATRIX THEORY AND THE SMALL BALL METHOD / [pt] TEORIA NÃO ASSINTÓTICA DE MATRIZES ALEATÓRIAS E O MÉTODO DA BOLA PEQUENA

PEDRO ABDALLA TEIXEIRA 08 June 2020 (has links)
[pt] Motivado por problemas no campo da recuperação de sinais por programação convexa, o objetivo deste trabalho é fornecer uma análise precisa do método das bola pequena e suas conexões com a teoria não assintótica das matrizes aleatórias. Em particular, o estudo dos valores singulares cônicos de matrizes aleatórias desempenhará um papel fundamental na análise de tais problemas. / [en] Motivated by problems in the field of signal recovery by convex programming, the aim of this work is to provide a careful analysis of the celebrated small ball method and its connections with the non-asymptotic theory of random matrices. In particular, the study of the conic singular values of random matrices will play a key role to analyze such problems.

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