  We use the Nikiforov-Uvarov method to calculate the bound states (energy
spectra and wave functions) of a two-dimensional (2D) electron gas interacted
with an exactly solvable pseudoharmonic confinement potential in a strong
uniform magentic field inside dot and Aharonov-Bohm flux field inside a
pseudodot. We give a unified treatment for both Schr\"odinger and spin-0
Klein-Gordon energy spectrum and wave functions as functions of chemical
potential parameter, magnetic field strength, AB flux field and magnetic
quantum number. We obtain analytic expression for the light interband
absorption coefficient and threshold frequency of absorption as functions of
applied magnetic field and geometrical size of quantum pseudodot. The
temperature dependence energy levels for GaAs are also calculated.
