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In this paper, we mainly introduce a general method to study the existence and uniqueness of solution of free boundary problems with partially degenerate diffusion.

Analysis of PDEs · Mathematics 2019-11-21 Siyu Liu , Mingxin Wang

In this article, we investigate the existence, uniqueness, nonexistence, and regularity of weak solutions to the nonlinear fractional elliptic problem of type $(P)$ (see below) involving singular nonlinearity and singular weights in smooth…

Analysis of PDEs · Mathematics 2020-09-25 Rakesh Arora , Jacques Giacomoni , Guillaume Warnault

Uniqueness of the finite element solution for nonmonotone quasilinear problems of elliptic type is established in one and two dimensions. In each case, we prove a comparison theorem based on locally bounding the variation of the discrete…

Numerical Analysis · Mathematics 2017-06-09 Sara Pollock , Yunrong Zhu

In this paper, we consider the indefinite fractional elliptic problem. A corresponding Liouville-type theorem for the indefinite fractional elliptic equations is established. Furthermore, we obtain a priori bound for solutions in a bounded…

Analysis of PDEs · Mathematics 2014-04-08 Wenxiong Chen , Jiuyi Zhu

In the paper, we considered the existence and uniqueness of the global solution in the space of continuously differentiable functions for a nonlinear differential equation with the Caputo fractional derivative of general form. Our main…

Mathematical Physics · Physics 2013-09-27 Sunae Pak , Myongha Kim

This paper deals with the local existence and uniqueness results for the solution of fractional differential equations with Hilfer-Hadamrd fractional derivative. Using Picard's approximations and generalizing the restrictive conditions…

Classical Analysis and ODEs · Mathematics 2017-06-02 D B Dhaigude , Sandeep P Bhairat

Inspired by the works of \cite{baz2} and \cite{kian}, this study develops an abstract framework for analyzing differential equations with space-dependent fractional time derivatives and bounded operators. Within this framework, we establish…

Analysis of PDEs · Mathematics 2025-02-19 Tiago Augusto dos Santos Boza , Paulo Mendes de Carvalho Neto

In this paper, we investigate the existence of positive weak solutions to a nonlocal singular elliptic problem under Dirichlet boundary condition. Problem is settled in fractional Musielak-Sobolev spaces with variable order. The main tool…

Analysis of PDEs · Mathematics 2025-12-09 Azeddine Baalal , Mohamed Berghout , El-Houcine Ouali

In this paper we investigate a class of elliptic problems involving a nonlocal Kirchhoff type operator with variable coefficients and data changing its sign. Under appropriated conditions on the coefficients, we have shown existence and…

Analysis of PDEs · Mathematics 2017-12-06 Camil S. Z. Redwan , João R. Santos Júnior , Antonio Suárez

In this paper, we study the Dirichlet problem for the implicit degen- erate nonlinear elliptic equation with variable exponent in a bounded domain. We obtain sufficient conditions for the existence of a solution with- out regularization and…

Analysis of PDEs · Mathematics 2015-10-15 Ugur Sert , Kamal Soltanov

We study a quite general family of nonlinear evolution equations of diffusive type with nonlocal effects. More precisely, we study porous medium equations with a fractional Laplacian pressure, and the problem is posed on a bounded space…

Analysis of PDEs · Mathematics 2017-08-03 Quoc-Hung Nguyen , Juan Luis Vázquez

In this paper, we study semilinear elliptic equations in domains where there is a natural class of solutions, which depend only on one variable, and whose simple geometry reflects the geometry of the domain. We prove that under quite…

Analysis of PDEs · Mathematics 2024-08-15 Danilo Gregorin Afonso

Using some nonlinear domain decomposition method, we prove the existence of singular limits for solution of semilinear elliptic problems with exponential nonlinearity.

Classical Analysis and ODEs · Mathematics 2015-06-26 Sami Baraket , Makkia Dammak , Taieb Ouni , Frank Pacard

The aim of this paper is investigating the existence of solutions of some semilinear elliptic problems on open bounded domains when the nonlinearity is subcritical and asymptotically linear at infinity and there is a perturbation term which…

Analysis of PDEs · Mathematics 2012-01-06 R. Bartolo , A. M. Candela , A. Salvatore

Let $\Omega\subset \mathbb{R}^N$ be a bounded regular domain, $0<s<1$ and $N>2s$. We consider $$ (P)\left\{ \begin{array}{rcll} (-\Delta)^s u &= & \frac{u^{q}}{d^{2s}} & \text{ in }\Omega , \\ u &> & 0 & \text{in }\Omega , \\ u & = & 0 &…

Analysis of PDEs · Mathematics 2018-06-11 Boumediene Abdellaoui , kheireddine Biroud , Ana Primo

This article concerns the fractional elliptic equations \begin{equation*}(-\Delta)^{s}u+\lambda V(x)u=f(u), \quad u\in H^{s}(\mathbb{R}^N), \end{equation*}where $(-\Delta)^{s}$ ($s\in (0\,,\,1)$) denotes the fractional Laplacian, $\lambda…

Analysis of PDEs · Mathematics 2015-02-10 Jinguo Zhang , Weifeng Jiang

In this paper, we initially derive the equivalent fractional integral equation to $\Psi$-Hilfer hybrid fractional differential equations and through it, we prove the existence of a solution in the weighted space. The primary objective of…

Dynamical Systems · Mathematics 2021-09-15 Kishor D. Kucche , Ashwini D. Mali

In this paper, we prove that there exists a unique weak solution to the mixed boundary value problem for a general class of semilinear second order elliptic partial differential equations with singular coefficients. Our approach is…

Probability · Mathematics 2011-12-15 Xue Yang , Tusheng Zhang

We show global uniqueness of the solution to a class of constrained variational problems, using scaling properties. This is used to establish the essential uniqueness of solutions of a large deviations problem in multiple dimensions. The…

Probability · Mathematics 2007-11-15 Adam Shwartz , Alan Weiss

We propose in this paper to study the solutions of some nonlinear elliptic equations with singular potential.

Analysis of PDEs · Mathematics 2015-10-06 Anouar Ben Mabrouk