An observation on Classification of Lie point symmetries for quadratic Liénard type equation $\ddot{x}+f\left(x\right){\dot{x}}^2+g\left(x\right)=0$ [JMP 54, 053506 (2013)] and its erratum [JMP 55, 059901 (2014)]

Abstract

We demonstrate a simplification of some recent works on the classification of the Lie symmetries for a quadratic equation of Liénard type. We observe that the problem could have been resolved more simply.

3 pages, to be published in Journal of Mathematical Physics

References in corpus (1)

• Classification of Lie point symmetries for quadratic Li$\acute{\text{e}}$nard type equation $\ddot{x}+f(x){\dot{x}}^2+g(x)=0$

Cited by in corpus (1)

• Dynamics and exact Bianchi I spacetimes in Einstein-aether scalar field theory