Soluções "ground states" para uma classe de problemas elípticos semilineares

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

We will consider in this work a class of semilinear problems in RN whose main characteristic is the presence of a singular term in the not linear perturbation of the operator. Combining variational techniques, arguments of the type upper and lower solutions and principle of comparison we prove a theorem, due to Zhang [49], 2007, that it establishes the existence of at least one ground state for the problem. Moreover, with some variations in the hypotheses of the perturbation of the operator, we prove results that establish unicity and nonexistence of radially symmetrical ground state. These results are due to Goncalves and Santos [25], 2004, and to Cirstea and Radulescu [9], 1999.

ASSUNTO(S)

nonexistence existence ground state upper solution equações diferenciais elípticas lower solution matematica unicity equações diferenciais lineares

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