The 3x+1 Periodicity Conjeture in $\mathbb{R}$
Abstract
The map is defined on the -adic integers by for even and for odd . It is still unproved that under iteration of the trajectory of any rational -adic integer is eventually cyclic. A -adic integer is rational if and only if its representation with 's and 's is eventually periodic. We prove that the conjugacy maps aperiodic onto aperiodic -adic integers provided that where is the number of 's in the first digits of with the following constraint: if there is a rational -adic integer with a non-cyclic trajectory, then necessarily . We study as an infinite series in and obtain negative irrational numbers for which we compute their aperiodic -adic expansion. We find prominent behaviors of the orbit of taking Sturmian words as parity vector. We also found amazing results of the terms of in . We define the 'th iterate of for in the ring of -adic integers and obtain positive irrational numbers for which we compute their aperiodic -adic expansion.
Keywords
Cite
@article{arxiv.2101.12747,
title = {The 3x+1 Periodicity Conjeture in $\mathbb{R}$},
author = {Josefina López and Peter Stoll},
journal= {arXiv preprint arXiv:2101.12747},
year = {2021}
}
Comments
51 pages, 18 figures