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Sergey V. Gonchenko (Institute for Applied Mathematics and Cybernetics, Nizhny Novgorod, Rússia): Towards scenarios of chaos appearance in three-dimensional maps

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19/10/2011 de 16:15 a 17:15 (Europe/Madrid / UTC200)

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Aula T2 (2n pis), Facultat de Matemàtiques, UB.

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 We analyze chaotic dynamics of three-dimensional smooth dissipative
maps (diffeomorphisms). We show that two main bifurcation scenarios of
chaos developing (from an asymptotically stable fixed (periodic) point to a
strange attractor) can be typically occurred here. In the first scenario,
the spiral (Shilnikov) attractor appears, whereas, in the second one,
either Lorenz-like or a "figure-8" strange attractors can be observed. We
give a qualitative description of both these scenarios and illustrate them
by some numerics (for 3D Henon maps).