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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2010.tde-13052010-162940
Document
Author
Full name
Fabio Antonio Araujo de Campos
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2010
Supervisor
Committee
Fu, Ma To (President)
Andrade, Doherty
Santos, Ederson Moreira dos
Title in Portuguese
Existência e não existência de soluções globais para uma equação de onda do tipo p-Laplaciano
Keywords in Portuguese
Comportamento assintótico
Dados pequenos
Equação de onda
Não existência global
Operador p-Laplaciano
Abstract in Portuguese
Neste trabalho estudamos a equação de ondas do tipo p-Laplaciano 'u IND. tt' - 'DELTA' IND.p u + '(- 'DELTA' POT. alpha' u IND. t' = ' [u] POT.q - 2 u, definida num domínio limitado limitado do 'R POT. n', com 2 ' > ou = ' p < q e 0 < ' alpha' < 1. Utilizando o método de Faedo-Galerkin provamos a existência de soluções fracas globais para dados iniciais pequenos. Para essas soluções estudamos também o decaimento polinomial da energia associada. A questão da não existência de soluções globais é considerada para o caso em que a energia inicial do sistema é negativa
Title in English
Existence and non-existence of global solutions for a wave equation with the p-Laplacian operator
Keywords in English
Asymptotic behavior
Global non-existence
p-Laplacian operator
Small data
Wave equation
Abstract in English
In this work we study the p-Laplacian wave equation 'u IND. tt' - ' DELTA' IND p u + '(- 'DELTA' POT. 'alpha' ' u IND. t' = '[u] POT. q - 2 u, defined in a bounded domain of 'R POT n', with 2 '> or =' p < q and 0 < ' alpha' < 1. By using the Faedo-Galerkin method we prove the existence of weak global solutions for small initial data. We also study the polynomial decay of the associate energy. The blow-up of solutions in finite time is considered for negative initial energy
 
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Publishing Date
2010-05-13
 
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