[ATOMOSYD] 1980 the Shimizu-Morioka System
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9/2/2015 [ATOMOSYD] 1980 The ShimizuMorioka system
http://www.atomosyd.net/spip.php?article75 1/2
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Christophe LETELLIER20/05/2009
1980 THE SHIMIZUMORIOKA SYSTEMT. Shimizu & N. Morioka
A system algebraically simpler than the Lorenz system has been proposed by Shimizu& Morioka [1].
The system
The set of three ordinary differential equations known as the "Shimizu & Morioka"system reads as :
This system has one fixed point, , located at the origin of the phase space and two
fixed points located at . For a wide range of parameter values,
including those corresponding to a chaotic attractor, is a saddle and are two
saddlefoci. This system produces a ``Lorenzlike’’ chaotic attractor with parameter
values and (Fig. 1).
Fig. 1 : Lorenzlike chaotic attractor solution to the ShimizuMorioka system
Replacing the with 0.191450 changes the attractor for a ``Burke and Shawlike’’attractor (Fig. 2).
Fig. 2 : BurkeShawlike attractor solution to the ShimizuMorioka system.
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9/2/2015 [ATOMOSYD] 1980 The ShimizuMorioka system
http://www.atomosyd.net/spip.php?article75 2/2
[1] T. Shimizu & N. Moroika, On the bifurcation of a symmetric limit cycle to an asymmetricone in a simple model, Physics Letters A, 76, 201204, 1980.
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