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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2022.tde-27052022-102622
Document
Author
Full name
Rafael de Oliveira Moura
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2022
Supervisor
Committee
Carvalho, Alexandre Nolasco de (President)
Bezerra, Flank David Morais
Bonotto, Everaldo de Mello
Pimentel, Juliana Fernandes da Silva
Title in English
Stability and hyperbolicity of equilibria for a nonlocal quasilinear Chafee-Infante equation
Keywords in English
Chafee-Infante equation
Global attractor
Gradient semigroups
Nonlocal Chafee-Infante equation
Quasilinear Chafee-Infante equation
Semigroups
Semilinear partial differential equations
Spectral analysis
Abstract in English
In this work we present the topics of spectral theory of operators, theory of semigroups and their generators and geometric theory of parabolic semilinear differential equations, and then apply these theories to analyze the qualitative aspects of the semilinear Chafee-Infante equation. Finally, we seek to study stability and hyperbolicity of equilibria for a non-local quasilinear Chafee-Infante equation, making use of a method of linearization for quasilinear problems, which has been developed in (CARVALHO; MOREIRA, 2021), in order to conclude that the equilibria of this complicated equation inherit some properties of stability and hyperbolicity from the classical semilinear equation.
Title in Portuguese
Estabilidade e hiperbolicidade de equilíbrios para uma equação de Chafee-Infante quasilinear não-local
Keywords in Portuguese
Análise espectral
Atrator global
Equação de Chafee-Infante
Equação de Chafee-Infante não-local
Equação de Chafee-Infante quasilinear
Equações diferenciais parciais semilineres
Semigrupos
Semigrupos gradientes
Abstract in Portuguese
Neste projeto apresentamos os tópicos de teoria espectral de operadores, teoria de semigrupos e seus geradores e teoria geométrica de equações diferenciais parabólicas semilineares, e em seguida aplicamos tais conhecimentos para analisar os aspectos qualitativos da equação de Chafee-Infante semilinear. Por fim, busca-se estudar estabilidade e hiperbolicidade dos equi- líbrios de uma equação de Chafee-Infante quasilinear não-local, utilizando-se um método de linearização para problemas quasilineares, desenvolvido em (CARVALHO; MOREIRA, 2021), a fim de se concluir que os equilíbrios dessa equação complicada herdam algumas propriedades de estabilidade e hiperbolicidade do caso semilinear clássico.
 
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Publishing Date
2022-05-27
 
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