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Feb 10, 2013 at 17:46 vote accept Bravo
Nov 3, 2012 at 14:42 comment added Aaron Hoffman Define $y(t) = e^{at}x(t)$ so that $\dot{y}(t) = e^{at}f(e^{-at}y) + ay = (f'(0) + a)y + O(y^2)$ with $y \equiv 0$ a solution. If all of the eigenvalues of A have real part less than -a, then by the result you quote $y(t) \to 0$ hence $x(t) \to 0$ at the exponential rate $\sim e^{-at}$. The keywords "exponential weight" and "stable manifold" might be useful.
Nov 3, 2012 at 13:59 history edited Bravo CC BY-SA 3.0
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Nov 3, 2012 at 12:52 answer added Bazin timeline score: 2
Nov 3, 2012 at 1:53 answer added Delio Mugnolo timeline score: 1
Nov 3, 2012 at 0:45 history asked Bravo CC BY-SA 3.0