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This paper is dedicated to the study of the semilinear fractional diffusion-wave equation. We provide estimates on the families of linear operators related to the problem in the fractional power scale associated with the Laplace operator.…

Analysis of PDEs · Mathematics 2025-09-09 Bruno de Andrade , Naldisson Santos

We investigate the existence, uniqueness, and $L^1$-contractivity of weak solutions to a porous medium equation with fractional diffusion on an evolving hypersurface. To settle the existence, we reformulate the equation as a local problem…

Analysis of PDEs · Mathematics 2016-01-22 Amal Alphonse , Charles M. Elliott

In this work, we study the higher differentiability of solutions to the inhomogeneous fractional $p$-Laplace equation under different regularity assumptions on the data. In the superquadratic case, we extend and sharpen several previous…

Analysis of PDEs · Mathematics 2024-06-25 Lars Diening , Kyeongbae Kim , Ho-Sik Lee , Simon Nowak

We describe the spectrum structure for the restricted Dirichlet fractional Laplacian in multi-tubes, i.e. domains with cylindrical outlets to infinity. Some new effects in comparison with the local case are discovered. In this version,…

Spectral Theory · Mathematics 2023-08-01 F. L. Bakharev , A. I. Nazarov

We demonstrate the existence in the sense of sequences of solutions for some integro-differential type problems involving the drift term and the square of the Laplace operator, on the whole real line or on a finite interval with periodic…

Analysis of PDEs · Mathematics 2025-09-16 Vitali Vougalter

We study the Dirichlet problem for non-homogeneous equations involving the fractional $p$-Laplacian. We apply Perron's method and prove Wiener's resolutivity theorem.

Analysis of PDEs · Mathematics 2016-05-13 Erik Lindgren , Peter Lindqvist

We prove the existence of at least three solutions for a weighted $p$-Laplacian operator involving Dirichlet boundary condition in a weighted Sobolev space. The main tool we use here is a three solution theorem in reflexive Banach spaces…

Analysis of PDEs · Mathematics 2022-09-20 Rohit Kumar , Abhishek Sarkar

This study investigates Dirichlet boundary condition related to a class of nonlinear parabolic problem with nonnegative $L^1$-data, which has a variable-order fractional $p$-Laplacian operator. The existence and uniqueness of renormalized…

Analysis of PDEs · Mathematics 2025-01-09 Sixuan Liu , Gang Dong , Hui Bi , Boying Wu

This paper studies a nonlinear Dirichlet problem for the $p$-Laplacian operator with nonlinearity consisting of power components. The problem under consideration can be though of as a perturbation of the Ambrosetti-Brezis-Cerami problem…

Analysis of PDEs · Mathematics 2015-01-19 Vladimir Lubyshev

Explicit solutions of differential equations of complex fractional orders with respect to functions and with continuous variable coefficients are established. The representations of solutions are given in terms of some convergent infinite…

Classical Analysis and ODEs · Mathematics 2021-03-15 Joel E. Restrepo , Michael Ruzhansky , Durvudkhan Suragan

We provide symmetrization results in the form of mass concentration comparisons for fractional singular elliptic equations in bounded domains, coupled with homogeneous external Dirichlet conditions. Two types of comparison results are…

Analysis of PDEs · Mathematics 2022-11-16 Barbara Brandolini , Ida de Bonis , Vincenzo Ferone , Bruno Volzone

The article is devoted to the solvability of a system of integro-differential equations in the case of the difference of the standard Laplacian and the bi-Laplacian in the diffusion terms. The proof of the existence of solutions is based on…

Analysis of PDEs · Mathematics 2026-04-28 Vitali Vougalter , Vitaly Volpert

In this paper, we show the existence of a sequence of eigenvalues for a Dirichlet problem involving two mixed fractional operators with different orders. We provide lower and upper bounds for the sum of the eigenvalues. Applications of…

Analysis of PDEs · Mathematics 2020-12-09 Huyuan Chen , Mousomi Bhakta , Hichem Hajaiej

We consider a Dirichlet type problem for a nonlinear, nonlocal equation driven by the degenerate fractional p-Laplacian, whose reaction combines a sublinear term depending on a positive parameter and an asymmetric perturbation (superlinear…

Analysis of PDEs · Mathematics 2021-05-12 Roberto Livrea , Antonio Iannizzotto

This paper is devoted to optimal functional inequalities for fractional Laplace operators on the sphere. Based on spectral properties, subcritical inequalities are established. Their consequences for fractional heat flows are considered.…

Analysis of PDEs · Mathematics 2016-10-07 Jean Dolbeault , An Zhang

This paper provides a new numerical strategy to solve fractional in space reaction-diffusion equations on bounded domains under homogeneous Dirichlet boundary conditions. Using the matrix transform method the fractional Laplacian operator…

Numerical Analysis · Mathematics 2024-03-19 Lidia Aceto , Paolo Novati

We consider nonlinear elliptic problems involving a nonlocal operator: the square root of the Laplacian in a bounded domain with zero Dirichlet boundary conditions. For positive solutions to problems with power nonlinearities, we establish…

Analysis of PDEs · Mathematics 2009-05-11 Xavier Cabre , Jinggang Tan

We provide closed formulas for (unique) solutions of nonhomogeneous Dirichlet problems on balls involving any positive power $s>0$ of the Laplacian. We are able to prescribe values outside the domain and boundary data of different orders…

Analysis of PDEs · Mathematics 2018-09-19 Nicola Abatangelo , Sven Jarohs , Alberto Saldaña

A common approach is present concerning the problem of Dirichlet, both for bounded 3D domains and their (unbounded) complements, regarding the fractional (3D) Poisson equation.

Mathematical Physics · Physics 2022-12-13 Toshko Boev , Georgi Georgiev

In this work we introduce volume constraint problems involving the nonlocal operator $(-\Delta)_{\delta}^{s}$, closely related to the fractional Laplacian $(-\Delta)^{s}$, and depending upon a parameter $\delta>0$ called horizon. We study…

Analysis of PDEs · Mathematics 2020-04-28 José C. Bellido , Alejandro Ortega
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