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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

In this paper, we investigate the existence of weak solutions for a class of degenerate elliptic Dirichlet problems with critical nonlinearity and a logarithmic perturbation

Analysis of PDEs · Mathematics 2024-05-20 Hua Chen , Xin Liao , Ming Zhang

The explicit solution to the Dirichlet problem for a class of mean value equations on the real line is derived. It shed some light on the behavior of solutions to general nonlocal elliptic equations.

Analysis of PDEs · Mathematics 2020-12-23 Karl K. Brustad

We investigate existence and uniqueness of solutions for a class of nonlinear nonlocal problems involving the fractional $p$-Laplacian operator and singular nonlinearities.

Analysis of PDEs · Mathematics 2016-07-04 Annamaria Canino , Luigi Montoro , Berardino Sciunzi , Marco Squassina

Fractional-order elliptic problems are investigated in case of inhomogeneous Dirichlet boundary data. The boundary integral form is proposed as a suitable mathematical model. The corresponding theory is completed by sharpening the mapping…

Analysis of PDEs · Mathematics 2020-05-15 Ferenc Izsák , Gábor Maros

We consider the following nonlinear Schrodinger equation [{l} \Delta u-(1+\delta V)u+f(u)=0 in \R^N, u>0 in \R^N, u\in H^1(\R^N).] where $V$ is a potential satisfying some decay condition and $ f(u)$ is a superlinear nonlinearity satisfying…

Analysis of PDEs · Mathematics 2012-11-01 Weiwei Ao , Juncheng Wei

We study a Dirichlet problem for an elliptic equation defined by a degenerate coercive operator and a singular right-hand side. We will show that the right-hand side has some regularizing effects on the solutions, even if it is singular.

Analysis of PDEs · Mathematics 2011-07-07 Gisella Croce

We deal with existence, uniqueness and regularity of nonnegative solutions to a Dirichlet problem for equations as \begin{equation*} \displaystyle -\operatorname{div}\left(\frac{|\nabla u|^{p-2}\nabla u}{(1+u)^{\theta(p-1)}}\right) = h(u)f…

Analysis of PDEs · Mathematics 2023-12-12 Riccardo Durastanti , Francescantonio Oliva

We consider a nonlinear elliptic equation driven by a nonhomogeneous differential operator plus an indefinite potential. On the reaction term we impose conditions only near zero. Using variational methods, together with truncation and…

Analysis of PDEs · Mathematics 2020-06-03 Nikolaos S. Papageorgiou , Vicenţiu D. Rădulescu , Dušan D. Repovš

We consider a strongly nonlinear elliptic problem with the homogeneous Dirichlet boundary condition. The growth and the coercivity of the elliptic operator is assumed to be indicated by an inhomogeneous anisotropic $\mathcal{N}$-function.…

Analysis of PDEs · Mathematics 2018-01-24 Miroslav Bulíček , Piotr Gwiazda , Martin Kalousek , Agnieszka Świerczewska-Gwiazda

We consider nonhomogeneous fractional $p$-Laplace equations defined on a bounded nonsmooth domain which goes beyond the Lipschitz category. Under a sufficient flatness assumption on the domain in the sense of Reifenberg, we establish…

Analysis of PDEs · Mathematics 2025-08-19 Sun-Sig Byun , Kyeongbae Kim , Kyeong Song

We consider positive solutions of a fractional Lane-Emden type problem in a bounded domain with Dirichlet conditions. We show that uniqueness and nondegeneracy hold for the asymptotically linear problem in general domains. Furthermore, we…

Analysis of PDEs · Mathematics 2022-07-25 Abdelrazek Dieb , Isabella Ianni , Alberto Saldaña

We consider a nonlinear Dirichlet problem driven by the $p$-Laplace differential operator with a reaction which has a subcritical growth restriction only from above. We prove two multiplicity theorems producing three nontrivial solutions,…

Analysis of PDEs · Mathematics 2019-03-13 Nikolaos S. Papageorgiou , Vicenţiu D. Rădulescu , Dušan D. Repovš

Conditions for the existence of at least three positive solutions to the nonlinear first-order problem with a nonlinear nonlocal boundary condition given by && y'(t) - p(t)y(t) = \sum_{i=1}^m f_i\big(t,y(t)\big), \quad t\in[0,1], && \lambda…

Classical Analysis and ODEs · Mathematics 2012-07-23 Douglas R. Anderson

This is a study of a class of nonlocal nonlinear diffusion equations. We present a strong maximum principle for nonlocal time-dependent Dirichlet problems. Results are for bounded functions of space, rather than (semi)-continuous functions.…

Analysis of PDEs · Mathematics 2016-02-12 Ravi Shankar , Tucker Hartland

We prove optimal regularity results in $L_p$-based function spaces in space and time for a large class of linear parabolic equations with a nonlocal elliptic operator in bounded domains with limited smoothness. Here the nonlocal operator is…

Analysis of PDEs · Mathematics 2024-09-27 Helmut Abels , Gerd Grubb

In this paper, we prove the existence and regularity of weak positive solutions for a class of nonlinear elliptic equations with a singular nonlinearity, lower order terms and $L^{1}$ datum in the setting of variable exponent Sobolev…

Analysis of PDEs · Mathematics 2021-10-29 Hichem Khelifi , Youssef El hadfi

Given a symmetric Riemannian manifold (M, g), we show some results of genericity for non degenerate sign changing solutions of singularly perturbed nonlinear elliptic problems with respect to the parameters: the positive number {\epsilon}…

Analysis of PDEs · Mathematics 2011-06-03 Marco Ghimenti , Anna Maria Micheletti

We prove continuity for bounded weak solutions of a nonlinear nonlocal parabolic type equation associated to a Dirichlet form with a rough kernel. The equation is allowed to be singular at the level zero, and solutions may change sign. If…

Analysis of PDEs · Mathematics 2017-10-09 Arturo de Pablo , Fernando Quirós , Ana Rodríguez

We consider a class of quasi-linear anisotropic elliptic equations, possibly degenerate or singular, which are of interest in several applications such as computer vision and continuum mechanics. We prove a Hopf Lemma as well as local and…

Analysis of PDEs · Mathematics 2019-02-19 Daniele Castorina , Giuseppe Riey , Berardino Sciunzi