Finite Lyapunov Exponent for Generalized Logistic Maps with z-Unimodality

This Demonstration shows a finite Lyapunov exponent of a one-dimensional unimodal map , which is a generalization of the well-known logistic map . The related Lyapunov exponent can be defined by
,
where is the base-2 logarithm, is the iteration number, is the iterate of starting from the initial condition , is the main control parameter, and is the subcontrol parameter, which determines the unimodality, the degree of the local maximum of .

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References
[1] S. H. Strogatz, Nonlinear Dynamics and Chaos, New York: Perseus Books Publishing, 1994.
[2] K. T. Alligood, T. D. Sauer, and J. A. Yorke, Chaos: An Introduction to Dynamical Systems, New York: Springer, 1996.
[3] H.-O. Peitgen, H. Jürgens, and D. Saupe, Chaos and Fractals: New Frontiers of Science, 2nd ed., New York: Springer, 2004.
[4] S. Wolfram, A New Kind of Science, Champaign, IL: Wolfram Media, 2002.
[5] M. J. Feigenbaum, "Quantitative Universality for a Class of Non-Linear Transformations," Journal of Statistical Physics, 19, 1978 pp. 25–52.
[6] M. J. Feigenbaum, "The Universal Metric Properties of Nonlinear Transformations," Journal of Statistical Physics, 21, 1979 pp. 669–706.
[7] K.-J. Moon, "Reducible Expansions and Related Sharp Crossovers in Feigenbaum's Renormalization Field," Chaos: An Interdisciplinary Journal of Nonlinear Science, 18, 2008 pp. 023104.
[8] K.-J. Moon, "Erratum: Reducible Expansions and Related Sharp Crossovers in Feigenbaum's Renormalization Field," Chaos: An Interdisciplinary Journal of Nonlinear Science, 20, 2010 pp. 049902.
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