Results 11 to 20 of about 247 (144)

Existence and multiplicity of solutions for a fourth-order differential system with instantaneous and non-instantaneous impulses

open access: yesOpen Mathematics, 2023
The main purpose is to establish the variational structure of a fourth-order ordinary differential system with both instantaneous and non-instantaneous impulses.
Xia Minggang   +2 more
doaj   +1 more source

Existence and multiplicity of solutions for a new p(x)-Kirchhoff problem with variable exponents

open access: yesOpen Mathematics, 2023
In this article, we study a class of new p(x)-Kirchhoff problem without satisfying the Ambrosetti-Rabinowitz type growth condition. Under some suitable superliner conditions, we introduce new methods to show the boundedness of Cerami sequences.
Chu Changmu, Xie Yanling, Zhou Dizhi
doaj   +1 more source

On mountain pass theorem and its application to periodic solutions of some nonlinear discrete systems

open access: yesAdvances in Difference Equations, 2019
In this paper, we prove a new quantitative deformation lemma, and then gain a new mountain pass theorem in Hilbert spaces. By using the new mountain pass theorem, we obtain the new existence of two nontrivial periodic solutions for a class of nonlinear ...
Liang Ding, Jinlong Wei, Shiqing Zhang
doaj   +1 more source

A bounded mountain pass lemma without the (PS) condition and applications [PDF]

open access: yesTransactions of the American Mathematical Society, 1992
The author's generalization of the fundamental mountain pass lemma is the following: Theorem. Let \(G(u)\in C^ 1(H,R^ 1)\), \(u_ k\) converging weakly to \(u\), \(| G(u_ k)|\leq c\), \(G'(u_ k)\to 0\), imply that \(G'(u)=0\). Assume that \(H=N\oplus M\), \(\dim N0\), such that \[ c_ 0\equiv\max_{bdy\{v\in N\mid\| v\|\leq R_ 0\}}G0 ...
openaire   +2 more sources

Existence of Nontrivial Solution for a Nonlocal Elliptic Equation with Nonlinear Boundary Condition

open access: yesBoundary Value Problems, 2009
In this paper, we establish two different existence results of solutions for a nonlocal elliptic equations with nonlinear boundary condition. The first one is based on Galerkin method, and gives a priori estimate. The second one is based on Mountain Pass
Fanglei Wang, Yukun An
doaj   +2 more sources

The Existence of a Nontrivial Solution for a -Kirchhoff Type Elliptic Equation in

open access: yesAbstract and Applied Analysis, 2013
Using Mountain Pass lemma, under some appropriate assumptions, we establish the existence of one nontrivial solution for a class of p-Kirchhoff-type elliptic equations in .
Zonghu Xiu
doaj   +1 more source

Existence of Solutions for Higher Order Bvp with Parameters via Critical Point Theory

open access: yesDemonstratio Mathematica, 2015
This paper is concerned with the existence of at least one solution of the nonlinear 2k-th order BVP. We use the Mountain Pass Lemma to get an existence result for the problem, whose linear part depends on several parameters.
Jurkiewicz Mariusz, Przeradzki Bogdan
doaj   +1 more source

Some Applications of Generalized Mountain Pass Lemma

open access: yes, 2014
The Ghoussoub-Preiss's generalized Mountain Pass Lemma with Cerami-Palais-Smale type condition is a generalization of classical MPL of Ambrosetti-Rabinowitz, we apply it to study the existence of the periodic solutions with a given energy for some second order Hamiltonian systems with symmetrical and non-symmetrical potentials.
Li, Fengying, Li, Bingyu, Zhang, Shiqing
openaire   +2 more sources

Existence Results for a px-Kirchhoff-Type Equation without Ambrosetti-Rabinowitz Condition

open access: yesJournal of Applied Mathematics, 2013
We consider the existence and multiplicity of solutions for the px-Kirchhoff-type equations without Ambrosetti-Rabinowitz condition. Using the Mountain Pass Lemma, the Fountain Theorem, and its dual, the existence of solutions and infinitely many ...
Libo Wang, Minghe Pei
doaj   +1 more source

Ground-State Solutions for a Class of N-Laplacian Equation with Critical Growth

open access: yesAbstract and Applied Analysis, 2012
We investigate the existence of ground-state solutions for a class of N-Laplacian equation with critical growth in ℝN. Our proof is based on a suitable Trudinger-Moser inequality, Pohozaev-Pucci-Serrin identity manifold, and mountain pass lemma.
Guoqing Zhang, Jing Sun
doaj   +1 more source

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