Symmetry Preserving Numerical Schemes for Partial Differential Equations and their Numerical Tests

Details Symmetry Preserving Numerical Schemes for Partial Differential Equations and their Numerical Tests Symmetry Preserving Numerical Schemes for Partial Differential Equations and their Numerical Tests

2011-10-26

arxiv.org/abs/1110.5921v1

Physics

Mathematical Physics

18 pages, 9 figures

Scientific paper

The method of equivariant moving frames on multi-space is used to construct symmetry preserving finite difference schemes of partial differential equations invariant under finite-dimensional symmetry groups. Invariant numerical schemes for a heat equation with a logarithmic source and the spherical Burgers equation are obtained. Numerical tests show how invariant schemes can be more accurate than standard discretizations on uniform rectangular meshes.

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