  In this paper the interior of the Schwarzschild black hole, which is
presented as a vacuum homogeneous and anisotropic Kantowski-Sachs
minisuperspace cosmological model, is considered. Lagrangian of the model is
reduced by a suitable coordinate transformation to Lagrangian of two decoupled
oscillators with the same frequencies and with zero energy in total (an
oscillator-ghost-oscillator system). The model will be presented in a
classical, a p-adic and a noncommutative case. Then, within the standard
quantum approach Wheeler-DeWitt equation and its general solutions, i.e. a wave
function of the model, will be written, and then an adelic wave function will
be constructed. Finally, thermodynamics of the model will be studied by using
the Feynman-Hibbs procedure.
