Nonlinear Sciences – Chaotic Dynamics
Scientific paper
1995-11-28
Phys.Rev. E53 (1996) 3420-3424
Nonlinear Sciences
Chaotic Dynamics
22kb plus 3 figures available on request; to appear in Phys. Rev. E
Scientific paper
10.1103/PhysRevE.53.3420
We study the variation of Lyapunov exponents of simple dynamical systems near attractor-widening and attractor-merging crises. The largest Lyapunov exponent has universal behaviour, showing abrupt variation as a function of the control parameter as the system passes through the crisis point, either in the value itself, in the case of the attractor-widening crisis, or in the slope, for attractor merging crises. The distribution of local Lyapunov exponents is very different for the two cases: the fluctuations remain constant through a merging crisis, but there is a dramatic increase in the fluctuations at a widening crisis.
Mehra Vishal
Ramaswamy Ramakrishna
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