Lie group stability of finite difference schemes

Details Lie group stability of finite difference schemes Lie group stability of finite difference schemes

2006-08-30

arxiv.org/abs/math/0608757v2

Supplement edition of the journal Discrete and Continuous Dynamical Systems, France (2007)

Mathematics

Numerical Analysis

10 pages

Scientific paper

Differential equations arising in fluid mechanics are usually derived from the intrinsic properties of mechanical systems, in the form of conservation laws, and bear symmetries, which are not generally preserved by a finite difference approximation, and leading to inaccurate numerical results. This paper proposes a method that enables us to build a scheme that preserves some of those symmetries.

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