We show that the structure of the Lie symmetry algebra of a system of n linear secondorder ordinary differential equations with constant coefficients depends on at most n À 1 parameters. The tools used are Jordan canonical forms and appropriate scaling transformations. We put our approach to test by
Systems of second-order linear ODE’s with constant coefficients and their symmetries
✍ Scribed by R. Campoamor-Stursberg
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 245 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1007-5704
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✦ Synopsis
Starting from the study of the symmetries of systems of 4 second-order linear ODEs with constant real coefficients, we determine the dimension and generators of the symmetry algebra for systems of (n) equations described by a diagonal Jordan canonical form. We further prove that some dimensions between the lower and upper bounds cannot be attained in the diagonal case, and classify the Levi factors of the symmetry algebras.
📜 SIMILAR VOLUMES
The present paper corrects the way of using Jordan canonical forms for studying the symmetry structures of systems of linear second-order ordinary differential equations with constant coefficients applied in [1]. The approach is demonstrated for a system consisting of two equations.
## a b s t r a c t In this paper, He's variational iteration method is applied for solving linear systems of ordinary differential equations with constant coefficients. A theorem for the convergence of the method is presented. Some illustrative examples are given to show the efficiency of the metho
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