  We discuss the separability of the position-dependent mass Hamiltonian in
cylindrical coordinates in the framework of a radial power-law
position-dependent mass. We consider two particular radial mass settings; a
harmonic oscillator type, and a Coulombic type. We subject the radial harmonic
oscillator type mass to a radial harmonic oscillator potential and the radial
Coulombic mass to a radial Coulombic potential. Azimuthal symmetry is assumed
and spectral signatures of various z-dependent interaction potentials are
reported.
