help needed to solve ODE problem

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dchashper
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Joined: Thu Jun 21, 2007 12:52 pm
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help needed to solve ODE problem

Postby dchashper » Thu Jun 21, 2007 1:09 pm

I need to prove that infinite is unstable in the following system.

dx/dt=y+f(x)
dy/dt=x-y+z
dz/dt=-y

When f(x) is a function such that Kx->f(x) for all x big enough (K>0).
Thanks.

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