ON THE ACCURACY OF INVARIANT NUMERICAL SCHEMES

被引:6
作者
Chhay, Marx [1 ]
Hamdouni, Aziz [1 ]
机构
[1] Univ La Rochelle, LEPTIAB, F-17000 La Rochelle, France
关键词
Invariant methods; Lie symmetry; order of accuracy; moving frames; parametrized scheme; geometric integration; MULTISYMPLECTIC GEOMETRY; VARIATIONAL INTEGRATORS; MOVING COFRAMES; SYMMETRY;
D O I
10.3934/cpaa.2011.10.761
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper we present a method of construction of invariant numerical schemes for partial differential equations. The resulting schemes preserve the Lie-symmetry group of the continuous equation and they are at least as accurate as the original scheme. The improvement of the numerical properties thanks to the Lie-symmetry preservation is illustrated on the example of the Burgers equation.
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页码:761 / 783
页数:23
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