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We study well-posedness and equivalence of different notions of solutions with finite energy for nonlocal porous medium type equations of the form $$\partial_tu-A\varphi(u)=0.$$ These equations are possibly degenerate nonlinear diffusion…

Analysis of PDEs · Mathematics 2017-03-08 Félix del Teso , Jørgen Endal , Espen R. Jakobsen

We consider several pressureless variants of the compressible Euler equation driven by nonlocal repulsionattraction and alignment forces with Poisson interaction. Under an energy admissibility criterion, we prove existence of global…

Analysis of PDEs · Mathematics 2021-09-17 José A. Carrillo , Tomasz Dębiec , Piotr Gwiazda , Agnieszka Świerczewska-Gwiazda

In this work we study a generalized nonlocal thermistor problem with fractional-order Riemann-Liouville derivative. Making use of fixed-point theory, we obtain existence and uniqueness of a positive solution.

Analysis of PDEs · Mathematics 2012-11-05 Moulay Rchid Sidi Ammi , Delfim F. M. Torres

We obtain uncountably many solutions of nonlinear Helmholtz and curl-curl equations on the entire space using a fixed point approach. As an auxiliary tool a Limiting Absorption Principle for the curl-curl operator is proved.

Analysis of PDEs · Mathematics 2018-11-21 Rainer Mandel

We study the limit behaviour of solutions of a class of solutions of nonlinear parabolic equations with a degenerate strong absorption. We prove that two types of phenomena can occur: the pointwise singularity or the formation of razor…

Analysis of PDEs · Mathematics 2007-08-23 Andrey Shishkov , Laurent Veron

A local model of the dielectric response of a metal predicts that singular surfaces, such as sharp-edged structures, have a continuous absorption spectrum and extreme concentration of energy at the singularity. Here we show that nonlocality…

Mesoscale and Nanoscale Physics · Physics 2019-04-24 Fan Yang , Yao-Ting Wang , Paloma Arroyo Huidobro , John B Pendry

We study the local behavior of bounded local weak solutions to a class of anisotropic singular equations that involves both non-degenerate and singular operators. Throughout a parabolic approach to expansion of positivity we obtain the…

Analysis of PDEs · Mathematics 2022-09-13 Simone Ciani , Igor I. Skrypnik , Vincenzo Vespri

We show the existence of solution for some classes of nonlocal problems. Our proof combines the presence of sub and supersolution with the pseudomonotone operators theory.

Analysis of PDEs · Mathematics 2014-02-11 Claudianor O. Alves , Dragos-Patru Covei

We study the singular limit problem for nonlocal conservation laws in which the sign of the initial datum is unrestricted and the velocity of the conservation law depends on a nonlocal approximation of the absolute value of the density. We…

Analysis of PDEs · Mathematics 2023-12-21 Alexander Keimer , Lukas Pflug

We investigate the emergence of singular solutions in a non-local model for a magnetic system. We study a modified Gilbert-type equation for the magnetization vector and find that the evolution depends strongly on the length scales of the…

Adaptation and Self-Organizing Systems · Physics 2008-04-25 Darryl D. Holm , Lennon O. Naraigh , Cesare Tronci

The existence and multiplicity of solutions for a class of non-local elliptic boundary value problems with superlinear source functions are investigated in this paper. Using variational methods, we examine the changes arise in the solution…

Analysis of PDEs · Mathematics 2020-08-06 Kuan-Hsiang Wang , Ching-yu Chen , Yueh-cheng Kuo , Tsung-fang Wu

In this paper, we consider the local existence and uniqueness result for the inhomogeneous Prandtl equations in dimension two by energy method. First of all, for the homogeneous case, the local-in-time well-posedness theory of unsteady…

Analysis of PDEs · Mathematics 2024-03-19 Jincheng Gao , Lianyun Peng , Zheng-an Yao

We prove the compactness of the support of the solution of some stationary Schr{\"o}dinger equations with a singular nonlinear order term. We present here a sharper version of some energy methods previously used in the literature and, in…

Analysis of PDEs · Mathematics 2024-02-20 Pascal Bégout , Jesús Ildefonso Díaz

When described through a plane-wave basis set, the inclusion of exact nonlocal exchange in hybrid functionals gives rise to a singularity, which slows down the convergence with the density of sampled $k$ points in reciprocal space. In this…

Materials Science · Physics 2009-09-10 Peter Broqvist , Audrius Alkauskas , Alfredo Pasquarello

In this paper we analyse a boundary value problem for the Laplace equation with a nonlinear non-autonomous transmission conditions on the boundary of a small inclusion of size $\epsilon$. We show that the problem has solutions for…

Analysis of PDEs · Mathematics 2022-11-24 Riccardo Molinarolo

We consider positive singular solutions (i.e. with a non-removable singularity) of a system of PDEs driven by $p$-Laplacian operators and with the additional presence of a nonlinear first order term. By a careful use of a rather new version…

Analysis of PDEs · Mathematics 2022-03-31 Stefano Biagi , Francesco Esposito , Luigi Montoro , Eugenio Vecchi

We present explicit formulas for solutions to nonhomogeneous boundary value problems involving any positive power of the Laplacian in the half-space. For non-integer powers the operator becomes nonlocal and this requires a suitable…

Analysis of PDEs · Mathematics 2018-08-14 Nicola Abatangelo , Serena Dipierro , Mouhamed Moustapha Fall , Sven Jarohs , Alberto Saldaña

In this paper we consider minimizers for nonlocal energy functionals generalizing elastic energies that are connected with the theory of peridynamics \cite{Silling2000} or nonlocal diffusion models \cite{Rossi}. We derive nonlocal versions…

Analysis of PDEs · Mathematics 2019-02-06 Mikil D. Foss , Petronela Radu , Cory Wright

The main purpose of this paper is to capture the asymptotic behavior for solutions to a class of nonlinear elliptic and parabolic equations with the anisotropic weights consisting of two power-type weights of different dimensions near the…

Analysis of PDEs · Mathematics 2024-04-23 Changxing Miao , Zhiwen Zhao

For Young systems, i.e. for hyperbolic systems without/with singularities satisfying Lai-Sang Young's axioms (which imply exponential decay of correlation and the CLT) a local CLT is proven. In fact, a unified version of the local CLT is…

Dynamical Systems · Mathematics 2019-12-19 Domokos Szász , Tamás Varjú
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