The Uniform Distribution of Sequences Generated by Iterated Polynomials
- Authors: Lerner E.1
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Affiliations:
- Moscow State University, Faculty of Computational Mathematics and Cybernetics
- Issue: Vol 11, No 4 (2019)
- Pages: 280-298
- Section: Research Articles
- URL: https://journals.rcsi.science/2070-0466/article/view/201280
- DOI: https://doi.org/10.1134/S2070046619040034
- ID: 201280
Cite item
Abstract
In the paper we show that given a polynomial f over ℤ = 0, ±1, ±2, ..., deg f ⩾ 2, the sequence x, f(x), f(f(x)) = f(2)(x), ..., where x is m-adic integer, produces a uniformly distributed set of points in every real unit hypercube under a natural map of the space ℤm of m-adic integers onto unit real interval. Namely, let m, s ∈ ℕ = {1, 2, 3, ...}, m > 1, let κn have a discrete uniform distribution on the set {0, 1, ..., mn - 1. We prove that with n tending to infinity random vectors
\(\left(\frac{\kappa_n}{m^n}, \frac{f(\kappa_n){\rm{mod}} m^n}{m^n}, \ldots, \frac{f^{(s-1)}(\kappa_n) {\rm{mod}} m^n}{m^n}\right)\)
weakly converge to a vector having a continuous uniform distribution in the s-dimensional unit hypercube. Analogous results were known before only for the case when s ⩽ 3 and f is a quadratic polynomial (deg f = 2).About the authors
Emil Lerner
Moscow State University, Faculty of Computational Mathematics and Cybernetics
Author for correspondence.
Email: neex.emil@gmail.com
Russian Federation, Moscow