Comment on “ A note on the construction of the Ermakov - Lewis invariant ”
نویسنده
چکیده
We show that the basic results on the paper referred in the title [J. Phys. A: Math. Gen. 35 (2002) 5333-5345], concerning the derivation of the Ermakov invariant from Noether symmetry methods, are not new. PACS numbers: 02.30.Hg, 02.90.+p, 03.20.+i The purpose of this comment is to point out that the main results presented in a recently published paper [1], are not new. At the end of the introduction of this paper, the authors claims that “. . . this is the first time the Noether symmetries are being considered to discuss the source of the Ermakov-Lewis
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