YITP WORKSHOP ON Quasi-Periodic Oscillations and
Time Variabilities of Accretion Flows
ABSTRACT
NAME
INSTITUTE
TITLE OF THE TALK
J. Horak
Astronomical Institute of the Czech Academy of Science, Czech Republic
Nonlinear interactions among oscillation modes of accretion tori
A formalism of nonlinear coupling of oscillation modes of fluid bodies
will be briefly explained and further applied to the oscillations of
pseudo-Newtonian slender tori. In particular, the attention is paid
to a nonlinear coupling among the epicyclic modes and to a role of
unstable modes in exciting the oscillations.