λ-symmetries for discrete equations

被引：12
|
作者：
Levi, D. [1 ,2 ]
Rodriguez, M. A. [3 ]
机构：
[1] Univ Roma Tre, Dipartimento Ingn Elettron, I-00146 Rome, Italy
[2] INFN, Sez Roma Tre, I-00146 Rome, Italy
[3] Univ Complutense, Dept Fis Teor 2, Fac Fis, E-28040 Madrid, Spain
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2010年 / 43卷 / 29期
关键词：
ORDINARY DIFFERENTIAL-EQUATIONS; C-INFINITY-SYMMETRIES; MU-SYMMETRIES; REDUCTION;
D O I：
10.1088/1751-8113/43/29/292001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Following the usual definition of lambda-symmetries of differential equations, we introduce the analogous concept for difference equations and apply it to some examples.
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页数：9
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