Reduction and reconstruction for symmetric ordinary differential equations

被引:6
|
作者
Gaeta, Giuseppe [4 ]
Grosshans, Frank D. [3 ]
Scheurle, Juergen [2 ]
Walcher, Sebastian [1 ]
机构
[1] Rhein Westfal TH Aachen, Lehrstuhl Math, D-52056 Aachen, Germany
[2] Tech Univ Munich, Zentrum Math, D-85747 Garching, Germany
[3] W Chester Univ, Dept Math, W Chester, PA 19383 USA
[4] Univ Milan, Dipartimento Matemat, I-20133 Milan, Italy
关键词
D O I
10.1016/j.jde.2008.01.009
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We discuss the reduction and reconstruction problem for ordinary differential equations that admit a linear symmetry group. The goal is to prove that modulo reduction there remain only linear differential equations, and to construct these explicitly. Extending previous work on one-parameter groups, we show this for certain unipotent and solvable groups, and for all semisimple groups. Some applications to relative equilibria are given. (C) 2008 Elsevier Inc. All rights reserved.
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页码:1810 / 1839
页数:30
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