Design of multistability of chaotic systems via self and cross coupling
Department of Mathematics, Ramananda College, Bishnupur, Bankura, West Bengal, India
2 Department of Mathematics, Raja N.L. Khan Womens College, Midnapore, West Bengal, India
3 Department of Mathematics, Birla Institute of Technology, Mesra, Ranchi, India
Accepted: 19 August 2021
Published online: 12 September 2021
In this paper, we proposed general coupling conditions to the error dynamics of coupled dynamical systems for realizing multistability. The basic mechanism to propose multistability is to design partial synchronization of states between the coupled system and use to find some initial condition-dependent constants of motion. Here, we propose that i number of state variables are completely synchronized, and the remaining j number of state variables of two coupled systems are in constant difference to obtain multistable behaviour, where and . We interpret our scheme for coupled chaotic Lorenz, Rossler, and Van der Pol–Duffing oscillators. Further, we establish numerical simulation results with a bifurcation diagram, phase diagram, and maximum Lyapunov exponent to show the desired results of our schemes.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021