If I want to force an equilibrium point of a discrete dynamical system to be unstable can I just violate one of the conditions for stability stated in the jury conditions
$$|\mbox{Trace} (J)| < 1 + \det (J) < 2$$
For example, if I can force that |TraceJ| >=2 , have I shown instability for the equilibrium point in question?
Any help would be greatly appreciated.