Abstract:We consider a parametric nonlinear Robin problem driven by the sum of a \(p\)-Laplacian and of a \(q\)-Laplacian (\((p,q)\)-equation). The reaction term is \((p-1)\)-superlinear but need not satisfy the Ambrosetti-Rabinowitz condition. Using variational tools, together with truncation and comparison techniques and critical groups, we show that for all small values of the parameter, the problem has at least five nontrivial smooth solutions, all with sign information.
“…In recent years, there are extensive bibliographies in the study of the quasilinear equation of the p&q-Laplacian type, see e.g. [5,10,11,13,13,20,1,7,25,26,8,16,24,4,12,22,19,21,9,3,17,19,2] and the references therein.…”
We study the ground state solutions for the following
p\&q-Laplacain equation \[
\left\{
\begin{array}{ll}
-\Delta_pu-\Delta_qu+V(x)
(|u|^{p-2}u+|u|^{q-2}u)=\lambda
K(x)f(u)+|u|^{q^*-2}u,~x\in\R^N,
\\ u\in
W^{1,p}(\R^N)\cap
W^{1,q}(\R^N), \end{array}
\right. \] where
$\lambda>0$ is a parameter large enough,
$\Delta_ru =
\text{div}(|\nabla
u|^{r-2}\nabla u)$ with
$r\in\{p,q\}$ denotes
the $r$ Laplacian operator, $1
“…In recent years, there are extensive bibliographies in the study of the quasilinear equation of the p&q-Laplacian type, see e.g. [5,10,11,13,13,20,1,7,25,26,8,16,24,4,12,22,19,21,9,3,17,19,2] and the references therein.…”
We study the ground state solutions for the following
p\&q-Laplacain equation \[
\left\{
\begin{array}{ll}
-\Delta_pu-\Delta_qu+V(x)
(|u|^{p-2}u+|u|^{q-2}u)=\lambda
K(x)f(u)+|u|^{q^*-2}u,~x\in\R^N,
\\ u\in
W^{1,p}(\R^N)\cap
W^{1,q}(\R^N), \end{array}
\right. \] where
$\lambda>0$ is a parameter large enough,
$\Delta_ru =
\text{div}(|\nabla
u|^{r-2}\nabla u)$ with
$r\in\{p,q\}$ denotes
the $r$ Laplacian operator, $1
“…To search for the ground state solutions, let's introduce the ground state energy and Nehari manifold corresponding to , where In recent years, there are extensive bibliographies in the study of the quasilinear equation of the p&q‐Laplacian type, see, for example, previous works [1–4, 6–24] and the references therein.…”
Section: Introduction and Main Resultsmentioning
confidence: 99%
“…In recent years, there are extensive bibliographies in the study of the quasilinear equation of the p&q-Laplacian type, see, for example, previous works [1][2][3][4][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] and the references therein. Cherfils-Il'yasov [2] obtained the existence and nonexistence results for the problem…”
We study the ground state solutions for the following p&q-Laplacian equationwhere 𝜆 > 0 is a parameter large enough, Δ r u = div(|∇u| r−2 ∇u) with r ∈ {p, q} denotes the r-Laplacian operator, 1 < p < q < N and q * = Nq∕(N − q). Under some assumptions for the periodic potential V, weight function K and nonlinearity 𝑓 without the Ambrosetti-Rabinowitz condition, we show the above equation has a ground state solution.
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