Preprint

Inserted: 7 nov 2022
Last Updated: 7 nov 2022

Year: 2022

Abstract:

We prove the stability of entropy solutions of nonlinear conservation laws with respect to perturbations of the initial datum, the space-time dependent flux and the entropy inequalities. Such a general stability theorem is motivated by the study of problems in which the flux $P[u](t,x,u)$ depends possibly non-locally on the solution itself. For these problems we show the conditional existence and uniqueness of entropy solutions. Moreover, the relaxation of the entropy inequality allows to treat approximate solutions arising from various numerical schemes. This can be used to derive the rate of convergence of the recent particle method introduced in Radici-Stra 2021 to solve a one-dimensional model of traffic with congestion, as well as recover already known rates for some other approximation methods.

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• stability.pdf