Comment on "A note on the construction of the Ermakov-Lewis invariant"
Mathematical Physics
2009-11-07 v1 math.MP
Abstract
We show that the basic results on the paper referred in the title [J. Phys. A: Math. Gen. v. 35 (2002) 5333-5345], concerning the derivation of the Ermakov invariant from Noether symmetry methods, are not new.
Cite
@article{arxiv.math-ph/0211037,
title = {Comment on "A note on the construction of the Ermakov-Lewis invariant"},
author = {F. Haas and J. Goedert},
journal= {arXiv preprint arXiv:math-ph/0211037},
year = {2009}
}