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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2011.tde-07062011-084414
Document
Author
Full name
Marcos Tadeu de Oliveira Pimenta
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2011
Supervisor
Committee
Soares, Sérgio Henrique Monari (President)
Alves, Claudianor Oliveira
Figueiredo, Giovany de Jesus Malcher
Maia, Liliane de Almeida
Miyagaki, Olimpio Hiroshi
Title in Portuguese
Estudo de alguns problemas elípticos para o operador biharmônico
Keywords in Portuguese
Equações biharmônicas. Métodos variacionais
Abstract in Portuguese
Nesse trabalho estudamos questões de existência, multiplicidade e concentração de soluções de uma classe de problemas elípticos biharmônicos. Nos três primeiros capítulos são utilizados métodos variacionais para estudar a existência, multiplicidade e comportamento assintótico das soluções fracas não-triviais de equações de Schrödinger estacionárias biharmônicas com diferentes hipóteses sobre o potencial e sobre a não-linearidade. No último capítulo, o método de decomposição em cones duais é empregado para obter a existência de três soluções (positiva, negativa e nodal) para uma equação biharmônica
Title in English
Study of some elliptic biharmonic problems
Keywords in English
Biharmonic equations
Variational methods
Abstract in English
In this work we study some problems on existence, multiplicity and concentration of solutions of biharmonic elliptic equtions. In the first three chapters, variational methods are used to study the existence, multiplicity and the asymptotic behavior of weak nontrivial solutions of stationary Schrödinger biharmonic equations under certain assumptions on the potential function and the nonlinearity. In the last chapter we use variational methods again and also the dual decomposition method to get existence of positive, negative and sign-changing solutions for a biharmonic equation
 
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pimenta.pdf (668.24 Kbytes)
Publishing Date
2011-06-07
 
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