  In previous studies, we have examined a resonant excitation of disk
oscillations in deformed disks. In these studies, however, mathematical
treatment around the resonant points was not rigorous. In this paper the
inadequate point is corrected, with no essential changes in the final results.
For this excitation process to work, disks must be general relativistic. That
is, the non-monotonic radial distribution of epicyclic frequency in
relativistic disks is essential for the presence of the resonance and for
trapping of oscillations. In this paper, the growth rate of resonant
oscillations is expressed in a form more suitable for numerical calculations.
