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Nonconvergence proof for the LDA-scheme

Publication at Faculty of Mathematics and Physics |
2020

Abstract

In this paper we consider the LDA (Low Diffusion Advection) scheme for solving conservation laws in two space dimensions as it was published in [1],[2], [5]. For a special grid and a special nonlinearity we will show by constructing a counterexample that there is no convergence of the numerical solution to the exact solution.

The example is constructed in such a way that the exact solution as well as the numerical solution are computed explicitly.