by Aziz Alaoui

Ref ,

in the
Int. Journ. of Bifurcation and Chaos **9**(6), 1009-1039, (1999),
(IJBC).

See also a Gallery of multispiral Strange Attractors in the modified Chua's system

See also some multispiral Strange Attractors in some Brockett type system

See also the Gallery of multispiral Strange Attractors in some PWL Reich-Kapitaniak type dynamical system

See also some multi-buckle Strange Attractors in some Van der pol type system

The state equations of this system are given by,

{dx}/{dt} = y - f_2(x), {dy}/{dt} = -alpha(x+y) + alpha . K sin(2.pi.Omega.t),

where x and y are functions of t, and f_2 is the Chua's nonlinearity, which is, here, modified to get multispiral attractors, and alpha, K omega are the parameters of the system.

A 4-spiral strange attractor exhibited by the modified nonautonmous system

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