Existence of nontrivial solutions for generalized quasilinear Schrödinger equations with critical or supercritical growths
Acta Mathematica Scientia(2017)
摘要
In this paper, we study the following generalized quasilinear Schrödinger equations with critical or supercritical growths
-div(g2(u)∇u)+g(u)g′(u)|∇u|2+V(x)u=f(x,u)+λ|u|p-2u,x∈RN,where
λ>0,N≥3,g:R→R+ is a C1 even function,
g(0)=1,g′(s)≥0 for all
s≥0,lim|s|→+∞g(s)|s|α-1:β>0 for some α ≥ 1 and
(α-1)g(s)>g′(s)s for all s > 0 and p ≥ α2*. Under some suitable conditions, we prove that the equation has a nontrivial solution for small λ > 0 using a change of variables and variational method.
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关键词
quasilinear Schrödinger equations,critical or supercritical growths,variational methods
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