Error estimate for the upwind scheme for the linear transport equation with boundary data
Résumé
We study the upwind finite volume scheme on a general mesh for the initial and boundary-value problem associated with a linear transport equation. For any BV initial and boundary data we prove the (optimal) convergence rate 1/2 in the L 1-norm. Compared to previous works, our main contribution is to take into account the boundary data and to relax some regularity assumptions on the velocity field. As an intermediate result, we also provide a complete proof of the BV regularity of weak solutions of such a general transport problem.
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