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We investigate existence and uniqueness of solutions to second-order elliptic boundary value problems containing a power nonlinearity applied to a fractional Laplacian. We detect the critical power separating the existence from the…

Analysis of PDEs · Mathematics 2020-05-20 Nicola Abatangelo , Matteo Cozzi

We obtain a critical imbedding and then, concentration-compactness principles for fractional Sobolev spaces with variable exponents. As an application of these results, we obtain the existence of many solutions for a class of critical…

Analysis of PDEs · Mathematics 2019-09-23 Ky Ho , Yun-Ho Kim

We prove a general perturbation theorem that can be used to obtain pairs of nontrivial solutions of a wide range of local and nonlocal nonhomogeneous elliptic problems. Applications to critical $p$-Laplacian problems, $p$-Laplacian problems…

Analysis of PDEs · Mathematics 2022-10-26 Kanishka Perera

In this paper we consider Sobolev inequalities associated with singular problems for the fractional $p$-Laplacian operator in a bounded domain of $\mathbb{R}^{N}$, $N\geq 2$.

Analysis of PDEs · Mathematics 2018-08-14 Grey Ercole , Gilberto de Assis Pereira

In this paper, we study existence and multiplicity of solutions for the following Kirchhoff-Choquard type equation involving the fractional $p$-Laplacian on the Heisenberg group: \begin{equation*} \begin{array}{lll}…

Analysis of PDEs · Mathematics 2024-01-19 S. Bai , Y. Song , D. D. Repovš

This article investigates the existence, nonexistence, and multiplicity of positive solutions to the sublinear fractional elliptic problem $(P_{\lambda}^s)$. We begin by establishing several a priori estimates that provide regularity…

Analysis of PDEs · Mathematics 2025-11-12 Jefferson Abrantes , Rohit Kumar , Abhishek Sarkar

We investigate the existence of positive solutions to fractional equations presenting a double criticality: a multi-polar Hardy-type potential and a Sobolev critical nonlinearity. The nonlocal nature of the operator and the absence of…

Analysis of PDEs · Mathematics 2026-05-01 Edoardo Mainini , Debangana Mukherjee , Roberto Ognibene

In one complex variable, the existence of a compactly supported solution to the Cauchy-Riemann equation is related to the vanishing of certain integrals of the data; trying to generalize this approach, we find an explicit construction, via…

Complex Variables · Mathematics 2013-01-11 Eric Amar , Samuele Mongodi

We investigate the fractional magnetic $p$-Laplacian operator in the physical dimension case $N=3$, with $0<s<1<p$ and $sp<3$. Our goal is twofold. First, we define and study suitable functional settings for such operator proving…

Analysis of PDEs · Mathematics 2026-03-09 Laura Baldelli , Federico Bernini

We deal with the following nonlinear problem involving fractional $p\&q$ Laplacians: \begin{equation*} (-\Delta)^{s}_{p}u+(-\Delta)^{s}_{q}u+|u|^{p-2}u+|u|^{q-2}u=\lambda h(x) f(u)+|u|^{q^{*}_{s}-2}u \mbox{ in } \mathbb{R}^{N},…

Analysis of PDEs · Mathematics 2019-07-02 Vincenzo Ambrosio

We discuss the Kirchhoff-type $p$-Laplacian Dirichlet problem containing the left and right fractional derivative operators. By using the mountain pass theorem and the genus properties in critical point theory, we get some new results on…

Classical Analysis and ODEs · Mathematics 2016-07-07 Taiyong Chen , Wenbin Liu , Hua Jin

Our main goal is to investigate supercritical Hardy-Sobolev type inequalities with a logarithmic term and their corresponding variational problem. We prove the existence of extremal functions for the associated variational problem, despite…

Analysis of PDEs · Mathematics 2025-05-14 José Francisco de Oliveira , Jeferson Silva

In this note we present the Pohozaev identity for the fractional Laplacian. As a consequence of this identity, we prove the nonexistence of nontrivial bounded solutions to semilinear problems with supercritical nonlinearities in star-shaped…

Analysis of PDEs · Mathematics 2012-05-03 Xavier Ros-Oton , Joaquim Serra

In this paper, we prove a new continuous embedding theorem for fractional Sobolev spaces with variable exponents into variable exponent Lebesgue spaces on unbounded domains. As an application, we study a class of nonlocal elliptic problems…

Analysis of PDEs · Mathematics 2025-09-03 Abdelkrim Barbara , Ahmed Bousmaha , Mohammed Shimi

We obtain a Struwe type global compactness result for a class of nonlinear nonlocal problems involving the fractional $p-$Laplacian operator and nonlinearities at critical growth.

Analysis of PDEs · Mathematics 2016-03-14 Lorenzo Brasco , Marco Squassina , Yang Yang

Time fractional parabolic problem for p-Laplacian with double singular Hardy-type potential is considered. Comparison principle and appriory estimates for the weak solutions are proved. Existence of global weak solutions and finite-time…

Analysis of PDEs · Mathematics 2026-03-17 Nikolai Kutev , Tsviatko Rangelov

In this article, we establish the existence of solutions to the fractional $p-$Kirchhoff type equations with a generalized Choquard nonlinearities without assuming the Ambrosetti-Rabinowitz condition.

Analysis of PDEs · Mathematics 2018-08-27 Wenjing Chen

In this work, we show the existence of an unbounded sequence of minimax eigenvalues for the logarithmic $p$-Laplacian via the $\mathbb{Z}_2$-cohomological index of Fadell and Rabinowitz. As an application of these minimax eigenvalues and…

Analysis of PDEs · Mathematics 2025-12-29 Rakesh Arora , Hichem Hajaiej , Kanishka Perera

We establish a compactness result for solutions of a certain class of hypoelliptic equations. This result allows us to show the existence of global weak solutions to the non-homogeneous Landau-Fermi-Dirac equation with Coulomb potential.

Analysis of PDEs · Mathematics 2024-10-17 Paulo Sampaio

In this paper, we investigate the following fractional Choquard type equation: \[ (- \Delta)_p^s\, u = \lambda\frac{|u|^{r-2}u}{|x|^\alpha}\,+\gamma \big(\int_\Omega \frac{|u|^q}{|x-y|^\mu}dy\big) |u|^{q-2}u \ \ \text{in } \Omega,\ \ u = 0…

Analysis of PDEs · Mathematics 2019-05-22 Yang Yang , Yuling Wang , Yong Wang