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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

Sobre a existência de infinitas soluções com energia finita de uma equação elíptica em Sn. / On the existence of infinite solutions with finite energy of an elliptic equation in Sn.

CHAGAS, Jesualdo Gomes das. 06 July 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-06T13:13:20Z No. of bitstreams: 1 JESUALDO GOMES DAS CHAGAS - DISSERTAÇÃO PPGMAT 2005..pdf: 575823 bytes, checksum: 521b6019d4248d58632cebebfe23bec8 (MD5) / Made available in DSpace on 2018-07-06T13:13:20Z (GMT). No. of bitstreams: 1 JESUALDO GOMES DAS CHAGAS - DISSERTAÇÃO PPGMAT 2005..pdf: 575823 bytes, checksum: 521b6019d4248d58632cebebfe23bec8 (MD5) Previous issue date: 2005-09 / Neste trabalho, estudamos a existência de infinitas soluções para o problema ∆u + |u| 4n−2 u = 0, u ∈ C 2(Rn), n ≥ 3, as quais possuem energia finita e que mudam de sinal. Para tanto, usaremos argumentos desenvolvidos por Ding [9]. Neste caso, resolveremos um problema, na esfera Sn, que é equivalente ao problema em questão. / In this work, we study the existence of infinite solutions to the problem ∆u + |u| 4n−2 u = 0, u ∈ C 2(Rn), n ≥ 3, which has finite energy and change sign. To do this, we use arguments developed by Ding [9]. In this case, we solve a problem, on sphere Sn, that is equivalent to theproblem in question.
2

Existência e simetrias para uma equação elíptica não-linear com potencial monopolar e anisotrópico

Amorim, Charles Braga 27 February 2015 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This master thesis is concerned to nonlinear elliptic problem with mono-polar anisotropic potential u + u|u|p−1 + v (x)u + f(x) = 0 in Rn u(x) - 0, as |x| - 00 provided n > 3 and p > n n−2 . These results, between others things, deals with sub-critical, critical and super-critical nonlinearity. We obtain well-posedness of solutions, regularity in c2(Rn), symmetries and asymptotic behavior of solutions in singular spaces Hk. We employ Banach fixed technique and a theorem of regularity elliptic to get those results, this technique does not need of the Hardy type inequalities and variational methods. / Nesta dissertação estudamos o problema elíptico u + u|u|p−1 + v (x)u + f(x) = 0 em Rn u(x) - 0, quando |x| - 00 sujeito a restrições n > 3 e p > n n−2 , cobrindo os casos sub-críticos, críticos e super-críticos. Obtemos boa-colocação de soluções, regularidade, simetrias de soluções e comportamento assintótico em espaços singulares Hk. Empregamos um argumento de ponto fixo em Hk e Ek ao invés de usar desigualdades do tipo Hardy e métodos variacionais.

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