Results 1 to 10 of about 117 (91)

Singular quasilinear convective systems involving variable exponents [PDF]

open access: yesOpuscula Mathematica, 2023
The paper deals with the existence of solutions for quasilinear elliptic systems involving singular and convection terms with variable exponents. The approach combines the sub-supersolutions method and Schauder's fixed point theorem.
Abdelkrim Moussaoui   +2 more
doaj   +1 more source

Multiplicity of solutions for an anisotropic variable exponent problem

open access: yesBoundary Value Problems, 2022
In this manuscript an existence result for an anisotropic variable problem which is related to several applications is proved. By considering suitable hypotheses, the multiplicity of solutions is obtained.
Leandro S. Tavares
doaj   +1 more source

Upper and lower absolutely continuous functions with applications to discontinuous differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
We use upper and lower absolutely continuous functions as subsolutions and supersolutions to discontinuous ordinary differential equations. We present sufficient conditions for the existence of extremal solutions to initial value problems. Due to a new
Krzysztof Topolski
doaj   +1 more source

Discontinuous Variational-Hemivariational Inequalities Involving the p-Laplacian

open access: yesJournal of Inequalities and Applications, 2007
We deal with discontinuous quasilinear elliptic variational-hemivariational inequalities. By using the method of sub- and supersolutions and based on the results of S. Carl, we extend the theory for discontinuous problems.
Patrick Winkert
doaj   +1 more source

The Hénon–Lane–Emden System: A Sharp Nonexistence Result

open access: yesAdvanced Nonlinear Studies, 2017
We deal with very weak positive supersolutions to the Hénon–Lane–Emden system on neighborhoods of the origin. In our main theorem we prove a sharp nonexistence result.
Carioli Andrea, Musina Roberta
doaj   +1 more source

On positive weak solutions for a class of weighted (p(.), q(.))−Laplacian systems

open access: yesMoroccan Journal of Pure and Applied Analysis, 2019
In this paper, we study the existence of positive weak solutions for a quasilinear elliptic system involving weighted (p(.), q(.))−Laplacian operators. The approach is based on sub-supersolutions method and on Schauder’s fixed point theorem.
Azroul Elhoussine   +2 more
doaj   +1 more source

Minimal positive solutions for systems of semilinear elliptic equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
The paper is devoted to a system of nonlinear PDEs containing gradient terms. Applying the approach based on Sattinger's iteration procedure we use sub and supersolutions methods to prove the existence of positive solutions with minimal growth.
Aleksandra Orpel
doaj   +1 more source

Existence of Positive Solutions for a Class of px,qx-Laplacian Elliptic Systems with Multiplication of Two Separate Functions

open access: yesComplexity, 2020
The paper deals with the study of the existence of weak positive solutions for a new class of the system of elliptic differential equations with respect to the symmetry conditions and the right hand side which has been defined as multiplication of two ...
Youcef Bouizem   +2 more
doaj   +1 more source

Supersolutions to nonautonomous Choquard equations in general domains

open access: yesAdvances in Nonlinear Analysis, 2023
We consider the nonlocal quasilinear elliptic problem: −Δmu(x)=H(x)((Iα*(Qf(u)))(x))βg(u(x))inΩ,-{\Delta }_{m}u\left(x)=H\left(x){(\left({I}_{\alpha }* \left(Qf\left(u)))\left(x))}^{\beta }g\left(u\left(x))\hspace{1.0em}\hspace{0.1em}\text{in}\hspace{0 ...
Aghajani Asadollah, Kinnunen Juha
doaj   +1 more source

Lyapunov Stability of Planar Waves to the Reaction-Diffusion Equation with a Non-Lipschitzian Reaction Term

open access: yesAdvances in Mathematical Physics, 2021
Extending (Drábek and Takáč 2017), we investigate the Lyapunov stability of planar waves for the reaction-diffusion equation on ℝn, n≥2, with a α-Ho¨lder continuous ...
Soyeun Jung, Eunkyung Ko
doaj   +1 more source

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