Reply to the: ''Comment by A. A. Stahlhofen on: 'Factorization of the radial Schrödinger equation and four kinds of raising and lowering operators of hydrogen atoms and isotropic harmonic oscillators'''.
The equivalence of the raising and lowering operators derived from the factorization of the radial Schrödinger equation and the conserved quantities responsible for the closeness of classical orbits for hydrogen atoms and isotropic harmonic oscillators is physically connected with the dynamical symmetry, in reply to the comment by \textit{A. A. Stahlhofen} [ibid. 241, 298-299 (1998; Zbl 1052.81672)].
scientific article; zbMATH DE number 1412003