ABOUT UNIQUENESS OF WEAK SOLUTIONS TO FIRST ORDER QUASI-LINEAR EQUATIONS

Autor: J. Nieto, Juan Soler, Frédéric Poupaud
Rok vydání: 2002
Předmět:
Zdroj: Mathematical Models and Methods in Applied Sciences. 12:1599-1615
ISSN: 1793-6314
0218-2025
DOI: 10.1142/s0218202502002252
Popis: In this paper we give a criterion to discriminate the entropy solution to quasi-linear equations of first order among weak solutions. This uniqueness statement is a generalization of Oleinik's criterion, which makes reference to the measure of the increasing character of weak solutions. The link between Oleinik's criterion and the entropy condition due to Kruzhkov is also clarified. An application of this analysis to the convergence of the particle method for conservation laws is also given by using the Filippov characteristics.
Databáze: OpenAIRE