Results 11 to 20 of about 158 (97)

A class of p1(x, ⋅) & p2(x, ⋅)-fractional Kirchhoff-type problem with variable s(x, ⋅)-order and without the Ambrosetti-Rabinowitz condition in ℝN

open access: yesOpen Mathematics, 2022
In this article, we study a class of Kirchhoff-type equation driven by the variable s(x, ⋅)-order fractional p1(x, ⋅) & p2(x, ⋅)-Laplacian. With the help of three different critical point theories, we obtain the existence and multiplicity of solutions in
Bu Weichun, An Tianqing, Zuo Jiabin
doaj   +1 more source

Ground state solution for some new Kirchhoff-type equations with Hartree-type nonlinearities and critical or supercritical growth

open access: yesOpen Mathematics, 2022
In this article, we study two classes of Kirchhoff-type equations as follows: −a+b∫R3∣∇u∣2dxΔu+V(x)u=(Iα∗∣u∣p)∣u∣p−2u+f(u),inR3,u∈H1(R3),\left\{\begin{array}{l}-\left(a+b\underset{{{\mathbb{R}}}^{3}}{\overset{}{\int }}| \nabla u{| }^{2}{\rm{d}}x\right ...
Zhou Li, Zhu Chuanxi
doaj   +1 more source

Bäcklund transformations for several cases of a type of generalized KdV equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 63, Page 3369-3377, 2004., 2004
An alternate generalized Korteweg‐de Vries system is studied here. A procedure for generating solutions is given. A theorem is presented, which is subsequently applied to this equation to obtain a type of Bäcklund transformation for several specific cases of the power of the derivative term appearing in the equation. In the process, several interesting,
Paul Bracken
wiley   +1 more source

Variational approach to dynamics of bright solitons in lossy optical fibers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 49, Page 3143-3148, 2003., 2003
A variational analysis of dynamics of soliton solution of coupled nonlinear Schrödinger equations with oscillating terms is made, considering a birefringent fiber with a third‐order nonlinearity in the anomalous dispersion frequency region. This theoretical model predicts optical soliton oscillations in lossy fibers.
M. F. Mahmood, S. Brooks
wiley   +1 more source

Eigenfrequencies of generally restrained beams

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 10, Page 503-516, 2003., 2003
We deal with the exact determination of eigenfrequencies of a beam with intermediate elastic constraints and generally restrained ends. It is the purpose of this paper to use the calculus of variations to obtain the equations of motion and the natural boundary conditions, and particularly those at the intermediate constraints.
Ricardo Oscar Grossi   +1 more
wiley   +1 more source

Sign-Changing Solutions for a Class of Zero Mass Nonlocal Schrödinger Equations

open access: yesAdvanced Nonlinear Studies, 2019
We consider the following class of fractional Schrödinger equations:
Ambrosio Vincenzo   +3 more
doaj   +1 more source

Perturbations near resonance for the p‐Laplacian in ℝN

open access: yesAbstract and Applied Analysis, Volume 7, Issue 6, Page 323-334, 2002., 2002
We study a multiplicity result for the perturbed p‐Laplacian equation −Δpu − λg(x)|u|p−2u = f(x, u) + h(x) in ℝN, where 1 < p < N and λ is near λ 1, the principal eigenvalue of the weighted eigenvalue problem −Δpu = λg(x)|u|p−2u in ℝN. Depending on which side λ is from λ 1, we prove the existence of one or three solutions.
To Fu Ma, Maurício Luciano Pelicer
wiley   +1 more source

On the location of the peaks of least‐energy solutions to semilinear Dirichlet problems with critical growth

open access: yesAbstract and Applied Analysis, Volume 7, Issue 10, Page 547-561, 2002., 2002
We study the location of the peaks of solution for the critical growth problem −ε 2Δu+u=f(u)+u 2*−1, u > 0 in Ω, u = 0 on ∂Ω, where Ω is a bounded domain; 2* = 2N/(N − 2), N ≥ 3, is the critical Sobolev exponent and f has a behavior like up, 1 < p < 2* − 1.
Marco A. S. Souto
wiley   +1 more source

Multiple solutions for a problem with resonance involving the p‐Laplacian

open access: yesAbstract and Applied Analysis, Volume 3, Issue 1-2, Page 191-201, 1998., 1998
In this paper we will investigate the existence of multiple solutions for the problem where Δpu = div(|∇u|p−2∇u) is the p‐Laplacian operator, Ω⫅ℝN is a bounded domain with smooth boundary, h and g are bounded functions, N ≥ 1 and 1 < p < ∞. Using the Mountain Pass Theorem and the Ekeland Variational Principle, we will show the existence of at least ...
C. O. Alves   +2 more
wiley   +1 more source

Existence and multiplicity of solutions for a class of p-Kirchhoff-type equation RN

open access: yesOpen Mathematics, 2023
This article shows the existence and multiplicity of solutions for the following pp-Kirchhoff-type equation: a+b∫RN(∣∇u∣p+V(x)∣u∣p)dx(−△pu+V(x)∣u∣p−2u)=λg(x)∣u∣r−2u−h(x)∣u∣q−2u,inRN.\left(a+b\mathop{\int }\limits_{{{\mathbb{R}}}^{N}}\left({| \nabla u| }^{
Chen Lijuan   +2 more
doaj   +1 more source

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