Oleinik-type estimates for nonlocal conservation laws and applications to the nonlocal-to-local limit
Abstract
We consider a class of nonlocal conservation laws with exponential kernel and prove that quantities involving the nonlocal term W:=𝟙(−∞,0](⋅)exp(⋅)∗ρ satisfy an Oleĭnik-type entropy condition. More precisely, under different sets of assumptions on the velocity function V, we prove that W satisfies a one-sided Lipschitz condition and that V′(W)W∂xW satisfies a one-sided bound, respectively. As a byproduct, we deduce that, as the exponential kernel is rescaled to converge to a Dirac delta distribution, the weak solution of the nonlocal problem converges to the unique entropy-admissible solution of the corresponding local conservation law, under the only assumption that the initial datum is essentially bounded and not necessarily of bounded variation.
Communicated by F. Ancona and S. Bianchini