Results 11 to 20 of about 662 (108)

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   +2 more sources

Boundary regularity for manifold constrained p(x)‐harmonic maps

open access: yesJournal of the London Mathematical Society, Volume 104, Issue 5, Page 2335-2375, December 2021., 2021
Abstract We prove partial and full boundary regularity for manifold constrained p(x)‐harmonic maps.
Iwona Chlebicka   +2 more
wiley   +1 more source

Positive solutions for the fractional Schrödinger equations with logarithmic and critical non‐linearities

open access: yesTransactions of the London Mathematical Society, Volume 8, Issue 1, Page 206-242, December 2021., 2021
Abstract In this paper, we study a class of fractional Schrödinger equations involving logarithmic and critical non‐linearities on an unbounded domain, and show that such an equation with positive or sign‐changing weight potentials admits at least one positive ground state solution and the associated energy is positive (or negative).
Haining Fan, Zhaosheng Feng, Xingjie Yan
wiley   +1 more source

Regularity for the two‐phase singular perturbation problems

open access: yesProceedings of the London Mathematical Society, Volume 123, Issue 5, Page 433-459, November 2021., 2021
Abstract We prove that an a priori bounded mean oscillation (BMO) gradient estimate for the two‐phase singular perturbation problem implies Lipschitz regularity for the limits. This problem arises in the mathematical theory of combustion, where the reaction diffusion is modeled by the p‐Laplacian. A key tool in our approach is the weak energy identity.
Aram Karakhanyan
wiley   +1 more source

Mathematical analysis of a discrete fracture model coupling Darcy flow in the matrix with Darcy-Forchheimer flow in the fracture [PDF]

open access: yesarXiv.org, 2014
We consider a model for flow in a porous medium with a fracture in which the flow in the fracture is governed by the DarcyForchheimer law while that in the surrounding matrix is governed by Darcy's law.
P. Knabner, J. Roberts
semanticscholar   +1 more source

A Liouville theorem for the Hénon-Lane-Emden system in four and five dimensions

open access: yesAdvanced Nonlinear Studies, 2022
In the present article, we investigate the following Hénon-Lane-Emden elliptic system: −Δu=∣x∣avp,x∈RN,−Δv=∣x∣buq,x∈RN,\left\{\begin{array}{ll}-\Delta u={| x| }^{a}{v}^{p},& x\in {{\mathbb{R}}}^{N},\\ -\Delta v={| x| }^{b}{u}^{q},& x\in {{\mathbb{R}}}^{N}
Li Hang
doaj   +1 more source

Asymptotic behavior of solutions of fully nonlinear equations over exterior domains

open access: yes, 2021
In this paper, we consider the asymptotic behavior at infinity of solutions of a class of fully nonlinear elliptic equations F (D2u) = f (x) over exterior domains, where the Hessian matrix (D2u) tends to some symmetric positive definite matrix at ...
Xiaobiao Jia
semanticscholar   +1 more source

Multiplicity of concentrating solutions for a class of magnetic Schrödinger-Poisson type equation

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the following nonlinear magnetic Schrödinger-Poisson type ...
Liu Yueli, Li Xu, Ji Chao
doaj   +1 more source

A complete study of the lack of compactness and existence results of a fractional Nirenberg equation via a flatness hypothesis, I [PDF]

open access: yes, 2014
In this paper, we consider a nonlinear critical problem involving the fractional Laplacian operator arising in conformal geometry, namely the prescribed -curvature problem on the standard n- sphere n ≥ 2.
W. Abdelhedi, H. Chtioui, H. Hajaiej
semanticscholar   +1 more source

On a weighted elliptic equation of N-Kirchhoff type with double exponential growth

open access: yesDemonstratio Mathematica, 2022
In this work, we study the weighted Kirchhoff problem −g∫Bσ(x)∣∇u∣Ndxdiv(σ(x)∣∇u∣N−2∇u)=f(x,u)inB,u>0inB,u=0on∂B,\left\{\begin{array}{ll}-g\left(\mathop{\displaystyle \int }\limits_{B}\sigma \left(x)| \nabla u\hspace{-0.25em}{| }^{N}{\rm{d}}x\right){\rm ...
Abid Imed, Baraket Sami, Jaidane Rached
doaj   +1 more source

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