Published Paper

Inserted: 24 dec 2020
Last Updated: 19 nov 2022

Journal: Annales de l'Institut Henri Poincaré C, Analyse Non Linéaire
Year: 2022
Doi: https://doi.org/10.4171/aihpc/58

Abstract:

We deal with the problem of approximating a scalar conservation law by a conservation law with nonlocal flux. As convolution kernel in the nonlocal flux, we consider an exponential-type approximation of the Dirac distribution. This enables us to obtain a total variation bound on the nonlocal term. By using this, we prove that the (unique) weak solution of the nonlocal problem converges strongly in $C(L^{1}_{\text{loc}})$ to the entropy solution of the local conservation law. We conclude with several numerical illustrations which underline the main results and, in particular, the difference between the solution and the nonlocal term.