  A core-collapse supernova might produce large amplitude gravitational waves
if, through the collapse process, the inner core can aquire enough rotational
energy to become dynamically unstable. In this report I present the results of
3-D numerical simulations of core collapse supernovae. These simulations
indicate that for some initial conditions the post-collapse inner core is
indeed unstable. However, for the cases considered, the instability does not
produce a large gravitational-wave signal.
