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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Existência de soluções para duas classes de problemas elípticos usando a aplicação fibração relacionada à variedade de Nehari

Lima, Sandra Machado de Souza 03 July 2014 (has links)
Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-05-26T17:51:05Z No. of bitstreams: 1 sandramachadodesouzalima.pdf: 680308 bytes, checksum: 1b724b63bb7a52093f6e1411a716269f (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-05-29T18:54:12Z (GMT) No. of bitstreams: 1 sandramachadodesouzalima.pdf: 680308 bytes, checksum: 1b724b63bb7a52093f6e1411a716269f (MD5) / Made available in DSpace on 2017-05-29T18:54:12Z (GMT). No. of bitstreams: 1 sandramachadodesouzalima.pdf: 680308 bytes, checksum: 1b724b63bb7a52093f6e1411a716269f (MD5) Previous issue date: 2014-07-03 / FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais / A variedade de Nehari para a equação −∆u(x) = λa(x)u(x)q + b(x)u(x)p, com x ∈ Ω, junto com a condição de fronteira de Dirichlet é investigada no caso em que a(x) = 1, λ ∈R, q = 1 e 0 < p < 1, e também no caso em que λ > 0 e 0 < q < 1 < p < 2∗−1. Explorando a relação entre a variedade de Nehari e a aplicação fibração ( isto é, aplicações da forma t → J(tu) onde J é o funcional de Euler associado ao problema em questão), iremos discutir a existência e multiplicidade de soluções não negativas. / The Nehari Manifold for the equation −∆u(x) = λa(x)u(x)q + b(x)u(x)p, for x ∈ Ω together with Dirichlet boundary conditions is investigated in which case a(x) = 1, λ ∈R, q = 1 and 0 < p < 1, and also in the case that λ > 0 and 0 < q < 1 < p < 2∗−1. Exploring the relationship between the Nehari manifold and fibering maps (i.e., maps of the form t → J(tu) where J is the Euler functional associated to the above equation), we will discuss the existence and multiplicity of non negative solutions.

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