On optimal regularity estimates for finite-entropy solutions of scalar conservation laws

Autor: Lamy, Xavier, Lorent, Andrew, Peng, Guanying
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
Popis: We consider finite-entropy solutions of scalar conservation laws $u_t +a(u)_x =0$, that is, bounded weak solutions whose entropy productions are locally finite Radon measures. Under the assumptions that the flux function $a$ is strictly convex (with possibly degenerate convexity) and $a''$ forms a doubling measure, we obtain a characterization of finite-entropy solutions in terms of an optimal regularity estimate involving a cost function first used by Golse and Perthame.
Databáze: arXiv