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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2023.tde-16012024-160656
Document
Author
Full name
Guilherme Kenji Nakassima
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2023
Supervisor
Committee
Castelo Filho, Antonio (President)
Figueiredo, Luiz Henrique de
Paiva Neto, Afonso
Silva, Paulo Leandro Dattori da
Title in English
On exponential dichotomy and frameworks for rigorous computation for differential equations
Keywords in English
Combinatorial marching hypercubes
Exponential dichotomy
Haar wavelets
Rigorous computational methods
Robustness of stability
Abstract in English
In this work we show research results on three different topics: robustness of asymptotic stability and exponential dichotomy for a class of differential equations in Banach spaces; a wavelet-based approach for a-posteriori self-validating numerical methods for differential equations, using the radii polynomial method; and the Generalized Combinatorial Marching Hypercubes algorithm for generation of manifolds in high dimensions, using combinatorial techniques to improve computational efficiency.
Title in Portuguese
Sobre dicotomia exponencial e abordagens para computação rigorosa para equações diferenciais
Keywords in Portuguese
Combinatorial marching hypercubes
Dicotomia exponencial
Métodos computacionais rigorosos
Robustez da estabilidade
Wavelet de Haar
Abstract in Portuguese
Neste trabalho mostramos pesquisas realizadas em três diferentes tópicos: robustez da estabilidade assintótica e dicotomia exponencial para uma classe de equações diferenciais em espaços de Banach; uma abordagem baseada em wavelets para métodos numéricos para equações diferenciais com validação automática a-posteriori, utilizando o método dos polinômios radiais; e o algoritmo Generalized Combinatorial Marching Hypercubes para geração de variedades em altas dimensões, com técnicas combinatórias para maior eficiência computacional.
 
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Publishing Date
2024-01-16
 
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