In this paper, the dynamics of the paradigmatic Rössler system is investigated in a yet unexplored region of its three-dimensional parameter space. We prove a necessary condition in this space for which the Rössler system can be chaotic. By using standard numerical tools, like bifurcation diagrams, Poincaré sections, and first-return maps, we highlight both asymptotically stable limit cycles and chaotic attractors. Lyapunov exponents are used to verify the chaotic behavior while random numerical procedures and various plane cross sections of the basins of attraction of the coexisting attractors prove that both limit cycles and chaotic attractors are hidden. We thus obtain previously unknown examples of bistability in the Rössler system, where a point attractor coexists with either a hidden limit cycle attractor or a hidden chaotic attractor.
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December 2020
Research Article|
December 23 2020
Bistability and hidden attractors in the paradigmatic Rössler’76 system
Special Collection:
Chaos: From Theory to Applications
Jean-Marc Malasoma
;
Jean-Marc Malasoma
a)
Rue de Frindeau
, 69780 Saint Pierre de Chandieu, France
a)Retired. Author to whom correspondence should be addressed: jmmalasoma@gmail.com
Search for other works by this author on:
Niels Malasoma
Niels Malasoma
b)
Rue de Frindeau
, 69780 Saint Pierre de Chandieu, France
Search for other works by this author on:
a)Retired. Author to whom correspondence should be addressed: jmmalasoma@gmail.com
b)
Electronic mail: malasoma.niels@gmail.com
Note: This paper is part of the Focus Issue, Chaos: From Theory to Applications.
Chaos 30, 123144 (2020)
Article history
Received:
September 21 2020
Accepted:
December 01 2020
Citation
Jean-Marc Malasoma, Niels Malasoma; Bistability and hidden attractors in the paradigmatic Rössler’76 system. Chaos 1 December 2020; 30 (12): 123144. https://doi.org/10.1063/5.0030023
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