Long-time behavior in scalar conservation laws

Abstract

We consider the long-time behavior of the entropy solution of a first-order scalar conservation law on a Riemannian manifold. In the case of the Torus, we show that, under a weak property of genuine non-linearity of the flux, the solution converges to its average value in $L^p$, $1\le p<+\infty$. We give a partial result in the general case.