Power law scaling of the top Lyapunov exponent of a Product of Random Matrices |
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Authors: | K. Ravishankar |
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Affiliation: | (1) Department of Mathematics and Computer Science, State University of New York, 12561 New Paltz, New York |
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Abstract: | A sequence of i.i.d. matrix-valued random variables with probabilityp and with probability 1–p is considered. Leta() = a0 + O(), c() = c0 + O() lim0b() = Oa0,c0, >0, andb()>0 for all >0. It is shown show that the top Lyapunov exponent of the matrix productXnXn-1...X1, = limn (1/n) n XnXn-1...X1 satisfies a power law with an exponent 1/2. That is, lim 0(ln /ln ) = 1/2. |
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Keywords: | Lyapunov exponent product of random matrices Markov chain |
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