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Let a 1-d system of hyperbolic conservation laws, with two unknowns, be endowed with a convex entropy. We consider the family of small $BV$ functions which are global solutions of this equation. For any small $BV$ initial data, such global…

Analysis of PDEs · Mathematics 2022-11-07 Geng Chen , Sam G. Krupa , Alexis F. Vasseur

Consider a non-local (i.e., involving a convolution term) conservation law: when the convolution term converges to a Dirac delta, in the limit we formally recover a classical (or "local") conservation law. In this note we overview recent…

Analysis of PDEs · Mathematics 2023-11-27 Maria Colombo , Gianluca Crippa , Elio Marconi , Laura V. Spinolo

In this work, we prove a comparison result for a general class of nonlinear dispersive unidirectional wave equations. The dispersive nature of one-dimensional waves occurs because of a convolution integral in space. For two specific choices…

Analysis of PDEs · Mathematics 2023-10-17 H. A. Erbay , S. Erbay , A. Erkip

The question of collapse (blow-up) in finite time is investigated for the two-dimensional (non-integrable) space-time nonlocal nonlinear Schrodinger equations. Starting from the two-dimensional extension of the well known AKNS q,r system,…

Pattern Formation and Solitons · Physics 2024-02-20 Justin T. Cole , Abdullah M. Aurko , Ziad H. Musslimani

In this contribution, we study scalar nonlocal conservation laws with the $p$-norm. Here, 'nonlocal' means that the velocity of the conservation law depends on an integral term in space. Typically, the nonlocal term consists of integrating…

Analysis of PDEs · Mathematics 2025-12-23 Felisia Angela Chiarello , Alexander Keimer , Lukas Pflug

The final goal of this paper is to prove existence of local (strong) solutions to a (fully nonlinear) porous medium equation with blow-up term and nondecreasing constraint. To this end, the equation, arising in the context of Damage…

Analysis of PDEs · Mathematics 2018-02-28 Goro Akagi , Stefano Melchionna

We study the initial-value problem for a general class of nonlinear nonlocal coupled wave equations. The problem involves convolution operators with kernel functions whose Fourier transforms are nonnegative. Some well-known examples of…

Analysis of PDEs · Mathematics 2011-02-22 N. Duruk , H. A. Erbay , A. Erkip

We investigate the well-posedness of scalar conservation laws whose flux depends on the solution both pointwise and nonlocally through integral averages. Our analysis is based on a fixed-point formulation, in which the nonlocal dependence…

Analysis of PDEs · Mathematics 2026-04-13 Xiaoqian Gong , Alexander Keimer , Lorenzo Liverani , Hossein Nick Zinat Matin

This contribution considers optimal control problems subject to nonlocal conservation laws -- those in which the velocity depends nonlocally (i.e., via a convolution) on the solution -- and the so-called singular limit. First, the existence…

Optimization and Control · Mathematics 2025-12-22 Alexander Keimer , Lukas Pflug , Jakob Rodestock

We consider a class of nonlocal conservation laws modeling traffic flows, given by $ \partial_t u_\varepsilon + \partial_x(V(u_\varepsilon \ast \gamma_\varepsilon) u_\varepsilon) = 0$, with a rescaled convolution kernel…

Analysis of PDEs · Mathematics 2025-11-20 Giuseppe Maria Coclite , Nicola De Nitti , Kuang Huang

The classical local Neumann problem is well studied and solutions of this problem lie, in general, in a Sobolev space. In this work, we focus on nonlocal Neumann problems with measurable, nonnegative kernels, whose solutions require less…

Analysis of PDEs · Mathematics 2022-08-11 Leonhard Frerick , Christian Vollmann , Michael Vu

In his 1892 paper [L. Bianchi, Sulla trasformazione di B\"{a}cklund per le superfici pseudosferiche, Rend. Mat. Acc. Lincei, s. 5, v. 1 (1892) 2, 3--12], L. Bianchi noticed, among other things, that quite simple transformations of the…

Exactly Solvable and Integrable Systems · Physics 2020-09-22 I. Krasil'shchik

We prove the well-posedness of entropy weak solutions for a class of space-discontinuous scalar conservation laws with non-local flux arising in traffic modeling. We approximate the problem adding a viscosity term and we provide $L^\infty$…

Analysis of PDEs · Mathematics 2021-05-24 Felisia Angela Chiarello , Giuseppe Maria Coclite

We investigate the space of non-local Sobolev functions associated with an integral kernel. We prove an extension result, Sobolev and Poincar\'e inequalities and an isoperimetric inequality for the non-local perimeter restricted to a set.…

Functional Analysis · Mathematics 2025-04-09 Konstantinos Bessas , Giuseppe Cosma Brusca

This work concerns the semilinear wave equation in three space dimensions with a power-like nonlinearity which is greater than cubic, and not quintic (i.e. not energy-critical). We prove that a scale-invariant Sobolev norm of any…

Analysis of PDEs · Mathematics 2018-03-16 Thomas Duyckaerts , Jianwei Yang

We are concerned with multidimensional stochastic balance laws. We identify a class of nonlinear balance laws for which uniform spatial $BV$ bounds for vanishing viscosity approximations can be achieved. Moreover, we establish temporal…

Analysis of PDEs · Mathematics 2015-06-03 Gui-Qiang G. Chen , Qian Ding , Kenneth H. Karlsen

We study large deviations for some non-local parabolic type equations. We show that, under some assumptions on the non-local term, problems defined in a bounded domain converge with an exponential rate to the solution of the problem defined…

Analysis of PDEs · Mathematics 2008-12-01 Cristina Brändle , Emmanuel Chasseigne

The nonlocal nonlinear aggregation equation in one space dimension is investigated. In the so-called attractive case smooth solutions blow up in finite time, so that weak measure solutions are introduced. The velocity involved in the…

Analysis of PDEs · Mathematics 2015-12-29 Francois James , Nicolas Vauchelet

We consider in this paper a perturbation of the standard semilinear heat equation by a term involving the space derivative and a non-local term. We prove the existence of a blow-up solution, and give its blow-up profile. Our proof relies on…

Analysis of PDEs · Mathematics 2020-07-03 Bouthaina Abdelhedi , Hatem Zaag

We consider scalar conservation laws with nonlocal diffusion of Riesz-Feller type such as the fractal Burgers equation. The existence of traveling wave solutions with monotone decreasing profile has been established recently (in special…

Analysis of PDEs · Mathematics 2023-08-21 Franz Achleitner , Yoshihiro Ueda