marotto’s chaos
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2006 ◽  
Vol 16 (08) ◽  
pp. 2221-2233 ◽  
Author(s):  
ZHAN ZHOU ◽  
JINLIANG WANG ◽  
ZHUJUN JING ◽  
RUQI WANG

This paper investigates the discrete-time recurrent neural networks and aims to extend the previous works with symmetric connection matrix to the asymmetric connection matrix. We provide the sufficient conditions of existence for asymptotical stability of fixed point, flip and fold bifurcations, Marotto's chaos. Besides, we state the conditions of existence for the bounded trapping region including many fixed points, and attracting set contained in bounded region and chaotic set. To demonstrate the theoretical results of the paper, several numerical examples are provided.The theorems in this paper are available more than in the previous works.


2002 ◽  
Vol 12 (03) ◽  
pp. 619-627 ◽  
Author(s):  
ZHUJUN JING ◽  
ZHIYUAN JIA ◽  
RUIQI WANG

The discrete BVP oscillator obtained through the Euler method is investigated, and also first proved that there exist chaotic phenomena in the sense of Marotto's definition of chaos and two-period cycles. And numerical simulations not only show the consistence with the theoretical analysis but also exhibit the complex dynamical behaviors, including the ten-periodic orbit, a cascade of period-doubling bifurcation, quasiperiodic orbits and the chaotic orbits in Marotto's chaos and intermitten's chaos. The computations of Lyapunov exponents confirm the existence of dynamical behaviors.


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