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Doctoral Thesis
DOI
https://doi.org/10.11606/T.45.2012.tde-04092012-153232
Document
Author
Full name
Ricardo de Sá Teles
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Oliveira, Luiz Augusto Fernandes de (President)
Fu, Ma To
Gentile, Claudia Buttarello
Nascimento, Arnaldo Simal do
Pereira, Antonio Luiz
Title in Portuguese
Atratores de trajetórias para algumas classes de equações diferenciais parciais
Keywords in Portuguese
atrator de trajetórias
difusão grande
Faedo-Galerkin
não unicidade de solução
semicontinuidade superior
Abstract in Portuguese
Neste trabalho estudamos um problema parabólico e um problema hiperbólico que não admitem unicidade de solução. Após garantir a existência de solução para cada um desses problemas, analisamos o comportamento assintótico de suas soluções por meio da teoria do atrator de trajetórias. Nossos resultados principais demonstram, sob hipóteses apropriadas, a semicontinuidade superior das famílias de atratores de trajetórias quando o coeficiente de difusão é grande.
Title in English
Trajectory attractors for some class of partial differential equations
Keywords in English
Faedo-Galerkin
large diffusion
non-uniqueness of solution
trajectory attractors
upper semicontinuity
Abstract in English
In this work we study a parabolic problem and a hyperbolic problem that not admit uniqueness of solution. After to ensure existence of solution for each of these problems, we analyze the asymptotic behavior of their solutions by means of the theory of trajectory attractors. Our main results demonstrate, under appropriate assumptions, the upper semicontinuity of families of trajectory attractors when the diffusion coefficient is large.
 
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teseFINAL.pdf (1,016.60 Kbytes)
Publishing Date
2012-09-10
 
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