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Limiting stochastic processes of shift-periodic dynamical systems.


ABSTRACT: A shift-periodic map is a one-dimensional map from the real line to itself which is periodic up to a linear translation and allowed to have singularities. It is shown that iterative sequences x n+1 = F(x n ) generated by such maps display rich dynamical behaviour. The integer parts ?xn? give a discrete-time random walk for a suitable initial distribution of x 0 and converge in certain limits to Brownian motion or more general Lévy processes. Furthermore, for certain shift-periodic maps with small holes on [0,1], convergence of trajectories to a continuous-time random walk is shown in a limit.

SUBMITTER: Stadlmann J 

PROVIDER: S-EPMC6894602 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Limiting stochastic processes of shift-periodic dynamical systems.

Stadlmann Julia J   Erban Radek R  

Royal Society open science 20191127 11


A shift-periodic map is a one-dimensional map from the real line to itself which is periodic up to a linear translation and allowed to have singularities. It is shown that iterative sequences <i>x</i> <sub><i>n</i>+1</sub> = <i>F</i>(<i>x</i> <sub><i>n</i></sub> ) generated by such maps display rich dynamical behaviour. The integer parts ⌊ x n ⌋ give a discrete-time random walk for a suitable initial distribution of <i>x</i> <sub>0</sub> and converge in certain limits to Brownian motion or more  ...[more]

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