E Ben-Naim and P L Krapivsky 2006 J. Phys. A: Math. Gen. 39 L301 doi:10.1088/0305-4470/39/20/L02
E Ben-Naim1 and P L Krapivsky2
Show affiliationsWe study how weak disorder affects the growth of the Fibonacci series. We introduce a family of stochastic sequences that grow by the normal Fibonacci recursion with probability 1 −
, but follow a different recursion rule with a small probability
. We focus on the weak disorder limit and obtain the Lyapunov exponent that characterizes the typical growth of the sequence elements, using perturbation theory. The limiting distribution for the ratio of consecutive sequence elements is obtained as well. A number of variations to the basic Fibonacci recursion including shift, doubling and copying are considered.
02.30.Lt Sequences, series, and summability
02.10.De Algebraic structures and number theory
05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion
11B39 Fibonacci and Lucas numbers and polynomials and generalizations
Issue 20 (19 May 2006)
Received 6 March 2006
Published 3 May 2006
E Ben-Naim and P L Krapivsky 2006 J. Phys. A: Math. Gen. 39 L301
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