## Investigation of Nonlinear Dynamics and Chaos in Driven Systems Derived from Einstein Functions

**Authors:** Sai Venkatesh Balasubramanian

The present work pertains to the formulation and generation of signal based frequency controlled chaos based on Einstein Functions. Specifically, the variable in the four Einstein functions is taken as an additively coupled sum of sinusoids with competing frequencies. By adapting the four Einstein functions into signals, the time derivatives are computed and used to form the iterative maps and phase portraits. It is seen that the four phase portraits display to varying degrees, ornamental patterns, characteristic of quasiperiodicity and chaos. Using these, bifurcation diagrams are plotted, and the chaotic signal is quantitatively characterized using largest Lyapunov Exponents. It is seen that the nature of chaos in the generated signals depend on the frequency ratio of the driving signals, thus pertaining to a case of signal based chaos, which has the key advantage of easy tunability, forming the novelty of the present work.

**Comments:** 5 Pages.

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### Submission history

[v1] 2015-10-28 20:18:43

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