Results 1 to 10 of about 89 (76)

Sign-changing solutions for some nonlinear problems with strong resonance [PDF]

open access: yesBoundary Value Problems, 2011
By means of critical point and index theories, we obtain the existence and multiplicity of sign-changing solutions for some elliptic problems with strong resonance at infinity, under weaker conditions.
Qian Aixia
doaj   +2 more sources

Infinitely many periodic solutions for some second-order differential systems with p(t)-Laplacian

open access: yesBoundary Value Problems, 2011
In this article, we investigate the existence of infinitely many periodic solutions for some nonautonomous second-order differential systems with p(t)-Laplacian. Some multiplicity results are obtained using critical point theory.
Zhang Liang, Tang Xian, Chen Jing
doaj   +1 more source

Existence and multiplicity results for a Steklov problem involving (p(x), q(x))-Laplacian operator

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this work, we are concerned with a generalized Steklov problem with (p(x), q(x))-Laplacian operator. Under some appropriate conditions on the data involved in the elliptic problem, we prove the existence of at least three solutions using Ricceri’s ...
Karim Belhadj   +3 more
doaj   +1 more source

Periodic solutions to a class of distributed delay differential equations via variational methods

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we study the existence of periodic solutions to a class of distributed delay differential equations. We transform the search for periodic solutions with the special symmetry of a delay differential equation to the problem of finding ...
Xiao Huafeng, Guo Zhiming
doaj   +1 more source

Concentration behavior of semiclassical solutions for Hamiltonian elliptic system

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the following nonlinear Hamiltonian elliptic system with gradient ...
Zhang Jian   +3 more
doaj   +1 more source

Steklov problems for the p−Laplace operator involving Lq-norm

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this paper, we are concerned with the study of the spectrum for the nonlinear Steklov problem of the form {Δpu=|u|p-2uin Ω,|∇u|p-2∂u∂v=λ‖u‖q,∂Ωp-q|u|q-2uon ∂Ω,\left\{ {\matrix{{{\Delta _p}u = {{\left| u \right|}^{p - 2}}u} \hfill & {{\rm{in}}\,\Omega ,
Alaoui My Driss Morchid   +2 more
doaj   +1 more source

Infinitely many periodic solutions for some second-order differential systems with p(t)-Laplacian [PDF]

open access: yes, 2011
In this article, we investigate the existence of infinitely many periodic solutions for some nonautonomous second-order differential systems with p(t)-Laplacian.
Jing Chen   +3 more
core   +1 more source

Boundary value problem with fractional p-Laplacian operator

open access: yesAdvances in Nonlinear Analysis, 2016
The aim of this paper is to obtain the existence of solution for the fractional p-Laplacian Dirichlet problem with mixed derivatives tDTα(|0Dtαu(t)|p-20Dtαu(t)) = f(t,u(t)), t ∈ [0,T], u(0) = u(T) = 0, where 1/p < α < 1, 1 < p < ∞ and f : [0,T] × ℝ → ℝ ...
Torres Ledesma César
doaj   +1 more source

Boundary value problems of a discrete generalized beam equation via variational methods

open access: yesOpen Mathematics, 2018
The authors explore the boundary value problems of a discrete generalized beam equation. Using the critical point theory, some sufficient conditions for the existence of the solutions are obtained.
Liu Xia, Zhou Tao, Shi Haiping
doaj   +1 more source

A Generalized Mountain Pass Theorem [PDF]

open access: yes, 2016
2010 Mathematics Subject Classification: 58E05 ...
Ruppen, Hans-Jörg
core   +1 more source

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