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Lyapunov Dimension


The Lyapunov dimension is a dimension estimate associated with the growth rates of infinitesimal perturbations in a dynamical system. A common asymptotic convention uses the Kaplan-Yorke dimension of the ordered Lyapunov characteristic exponents. For a two-dimensional map with lambda_1>=0 and lambda_1+lambda_2<0, this gives

 d_(Lya)=1+(lambda_1)/(|lambda_2|).

Finite-time local versions instead apply the same interpolation to the logarithms of the singular values of the derivative of the time map (Kuznetsov 2016). A local dimension computed in this way need not equal the Hausdorff dimension of an invariant set.


See also

Capacity Dimension, Eden's Conjecture, Kaplan-Yorke Conjecture, Kaplan-Yorke Dimension

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References

Frederickson, P.; Kaplan, J. L.; Yorke, E. D.; and Yorke, J. A. "The Liapunov Dimension of Strange Attractors." J. Diff. Eq. 49, 185-207, 1983.Kuznetsov, N. V. "The Lyapunov Dimension and Its Estimation via the Leonov Method." Phys. Lett. A 380, 2142-2149, 2016. https://doi.org/10.1016/j.physleta.2016.04.036.Nayfeh, A. H. and Balachandran, B. Applied Nonlinear Dynamics: Analytical, Computational, and Experimental Methods. New York: Wiley, p. 549, 1995.

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Lyapunov Dimension

Cite this as:

Weisstein, Eric W. "Lyapunov Dimension." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/LyapunovDimension.html

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