Results 1 to 10 of about 41 (41)

p(x)-Kirchhoff-type problem with no-flux boundary conditions and convection

open access: yesNonautonomous Dynamical Systems, 2023
This article establishes the existence of a weak solution for a class of p(x)p\left(x)-Kirchhoff-type problem under no-flux boundary conditions with a reaction term depending also on the gradient convection. The proof of the main result is constructed by
Yacini Soukaina   +3 more
doaj   +1 more source

Positive solutions for boundary value problems of a class of second-order differential equation system

open access: yesOpen Mathematics, 2023
This article discusses the existence of positive solutions for the system of second-order ordinary differential equation boundary value problems −u″(t)=f(t,u(t),v(t),u′(t)),t∈[0,1],−v″(t)=g(t,u(t),v(t),v′(t)),t∈[0,1],u(0)=u(1)=0,v(0)=v(1)=0,\left\{\begin{
Wang Dan, Li Yongxiang, Su Yi
doaj   +1 more source

Positive solutions for discrete Minkowski curvature systems of the Lane-Emden type

open access: yesOpen Mathematics, 2023
We study the one-parameter discrete Lane-Emden systems with Minkowski curvature operator ΔΔu(k−1)1−(Δu(k−1))2+λμ(k)(p+1)up(k)vq+1(k)=0,k∈[2,n−1]Z,ΔΔv(k−1)1−(Δv(k−1))2+λμ(k)(q+1)up+1(k)vq(k)=0,k∈[2,n−1]Z,Δu(1)=u(n)=0=Δv(1)=v(n),\left\{\begin{array}{ll ...
Liang Yongwen, Chen Tianlan
doaj   +1 more source

Existence result for a nonlinear elliptic problem by topological degree in Sobolev spaces with variable exponent

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
The aim of this paper is to establish the existence of solutions for a nonlinear elliptic problem of the ...
Ait Hammou Mustapha, Azroul Elhoussine
doaj   +1 more source

Limit cycles of discontinuous piecewise linear differential systems formed by centers or Hamiltonian without equilibria separated by irreducible cubics

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
The main goal of this paper is to provide the maximum number of crossing limit cycles of two different families of discontinuous piecewise linear differential systems.
Damene Loubna, Benterki Rebiha
doaj   +1 more source

New results on the existence of periodic solutions for Rayleigh equations with state-dependent delay

open access: yesNonautonomous Dynamical Systems, 2022
We consider a Rayleigh-type equation with state–dependent delay ℘″(ϑ)+𝒱1(ϑ,℘(ϑ))+A(℘(ϑ−𝒱2(ϑ,℘(ϑ))))=B(ϑ).\wp ''\left( \vartheta \right) + \mathcal{V}{_1}\left( {\vartheta ,\wp \left( \vartheta \right)} \right) + A\left( {\wp \left( {\vartheta ...
Eswari Rajendiran   +4 more
doaj   +1 more source

Limit cycles of Liénard polynomial systems type by averaging method

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
We apply the averaging theory of first and second order for studying the limit cycles of generalized polynomial Linard systems of the ...
Boulfoul Amel, Mellahi Nawal
doaj   +1 more source

Semilinear systems with a multi-valued nonlinear term

open access: yesOpen Mathematics, 2017
Introducing a topological degree theory, we first establish some existence results for the inclusion h ∈ Lu − Nu in the nonresonance and resonance cases, where L is a closed densely defined linear operator on a Hilbert space with a compact resolvent and ...
Kim In-Sook, Hong Suk-Joon
doaj   +1 more source

Global Perturbation of Nonlinear Eigenvalues

open access: yesAdvanced Nonlinear Studies, 2021
This paper generalizes the classical theory of perturbation of eigenvalues up to cover the most general setting where the operator surface 𝔏:[a,b]×[c,d]→Φ0⁢(U,V){\mathfrak{L}:[a,b]\times[c,d]\to\Phi_{0}(U,V)}, (λ,μ)↦𝔏⁢(λ,μ){(\lambda,\mu)\mapsto\mathfrak ...
López-Gómez Julián   +1 more
doaj   +1 more source

An index formula for the degree of (S)+‐mappings associated with one‐dimensional p‐Laplacian

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 11, Page 981-995, 2004., 2004
The topological degree for (S)+‐mappings concerning a nonlinear eigenvalue problem associated with one‐dimensional p‐Laplacian is evaluated. The result is applied to a variational inequality, where the multiple existence of solutions is discussed.
Jun Kobayashi, Mitsuharu Ôtani
wiley   +1 more source

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