Results 1 to 10 of about 485,328 (331)

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   +3 more sources

Max-Min characterization of the mountain pass energy level for a class of variational problems [PDF]

open access: hybrid, 2009
We provide a max-min characterization of the mountain pass energy level for a family of variational problems. As a consequence we deduce the mountain pass structure of solutions to suitable PDEs, whose existence follows from classical minimization ...
Bellazzini, Jacopo, Visciglia, Nicola
core   +2 more sources

Nonlinear Scalar Field Equations with L2 Constraint: Mountain Pass and Symmetric Mountain Pass Approaches [PDF]

open access: yesAdvanced Nonlinear Studies, 2019
We study the existence of radially symmetric solutions of the following nonlinear scalar field equations in ℝN{\mathbb{R}^{N}} (N≥2{N\geq 2}):
Hirata Jun, Tanaka Kazunaga
doaj   +4 more sources

Bird Migration Through A Mountain Pass Studied With High Resolution Radar, Ceilometers, And Census [PDF]

open access: bronze, 2001
Autumnal migration was studied with high-resolution radar, ceilometer, and daily census in the area of Franconia Notch, a major pass in the northern Appalachian Mountains.
Stokstad, P.   +3 more
core   +4 more sources

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

La figure paysagère du col de montagne au double prisme des pratiques cyclotouristiques et de trekking : expériences, imaginaires et fonctions symboliques

open access: yesProjets de Paysage, 2021
Following a comparative analysis, the article explores the practices and representations associated with mountain pass landscapes among the communities of cyclists and trekkers.
Yannick Hascoët   +4 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

Multiple solutions for a quasilinear Choquard equation with critical nonlinearity

open access: yesOpen Mathematics, 2021
In the present work, we are concerned with the multiple solutions for quasilinear Choquard equation with critical nonlinearity in RN{{\mathbb{R}}}^{N}.
Li Rui, Song Yueqiang
doaj   +1 more source

Non-autonomous weighted elliptic equations with double exponential growth

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
We consider the existence of solutions of the following weighted problem: {L:=-div(ρ(x)|∇u|N-2∇u)+ξ(x)|u|N-2u=f(x,u)inBu>0inBu=0on∂B,\left\{ {\matrix{{L: = - div\left( {\rho \left( x \right){{\left| {\nabla u} \right|}^{N - 2}}\nabla u} \right) + \xi ...
Baraket Sami, Jaidane Rached
doaj   +1 more source

Anisotropic problems with unbalanced growth

open access: yesAdvances in Nonlinear Analysis, 2020
The main purpose of this paper is to study a general class of (p, q)-type eigenvalues problems with lack of compactness. The reaction is a convex-concave nonlinearity described by power-type terms.
Alsaedi Ahmed, Ahmad Bashir
doaj   +1 more source

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