Applying some reduced Lie algebras of Lie symmetry operators of a Lie transformation group, we obtain an invariant of a second-order differential equation which can be generated by a Euler-Lagrange formulism. A corresponding discrete equation approximating it is given as well. Finally, we make use of the Lie algebras to generate some new integrable systems including (1 + 1) and (2 + 1) dimensions.
|Journal||Advances in Mathematical Physics|
|Publication status||Published - 2016|
Scopus Subject Areas
- Physics and Astronomy(all)
- Applied Mathematics