The Lax-Richtmyer theorem is extended to work in the framework of Stetter’s theory of discretizations. The new result applies to both initial and boundary value problems discretized by finite elements, finite differences, etc. Several examples are given, together with a comparison with other available equivalence theorems. The proof relies on a generalized Banach-Steinhaus theorem.
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Sanz‐Serna et al. (1985) studied this question.
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