Symmetries of discrete dynamical systems involving two species

被引：22

作者：

Gómez-Ullate, D ^{[1
]}

Lafortune, S

Winternitz, P

机构：

[1] Univ Complutense, Fac Ciencias Fis, Dept Fis Teor 2, E-28040 Madrid, Spain

[2] Univ Montreal, Ctr Rech Math, Montreal, PQ H3C 3J7, Canada

来源：

JOURNAL OF MATHEMATICAL PHYSICS | 1999年 / 40卷 / 06期

关键词：

D O I：

10.1063/1.532728

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Lie point symmetries of a coupled system of two nonlinear differential-difference equations are investigated. It is shown that in special cases the symmetry group can be infinite dimensional, in other cases up to ten dimensional. The equations can describe the interaction of two long molecular chains, each involving one type of atoms. (C) 1999 American Institute of Physics. [S0022-2488(99)03206-5].

引用

页码：2782 / 2804

页数：23

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