Articles written in Pramana – Journal of Physics
Volume 92 Issue 3 March 2019 Article ID 0042 Research Article
A complete analytical study on the dynamics of simple chaotic systems
G SIVAGANESH A ARULGNANAM A N SEETHALAKSHMI
We report, in this paper, a complete analytical study on the bifurcations and chaotic phenomena observed in certain second-order, non-autonomous, dissipative chaotic systems. One-parameter bifurcation diagrams obtained from the analytical solutions revealing several chaotic phenomena such as antimonotonicity, period-doubling sequences and Feignbaum remerging have been presented. Further, the analytical solutions are used to obtain basins of attraction, phase portraits and Poincare maps for different chaotic systems. Experimentally observed chaotic attractors in some of the systems are presented to confirm the analytical results. The bifurcations andchaotic phenomena studied through explicit analytical solutions are reported in the literature for the first time.
Volume 96 All articles Published: 22 September 2022 Article ID 0185 Research Article
Analytical studies on the dynamics of higher-dimensional nonlinear circuit systems
G SIVAGANESH K SRINIVASAN A ARULGNANAM
Explicit analytical solutions of higher-dimensional chaotic and hyperchaotic systems are areas of research to be much explored. Till now, the dynamics of higher-dimensional systems and the synchronisation dynamics of coupled higher-dimensional systems have not been studied analytically. In the present work, explicit analytical solutions are developed for the dynamical behaviours observed in third-order and fourth-order nonlinear dissipative systems and also for the coupled dynamics of these systems.The Chua’s circuit and the modified canonical Chua’s circuit are studied analytically in the present work. The analytical results explaining the underlying important features of these systems are validated through experimental results.
Volume 97, 2023
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