Discrete Mathematics & Theoretical Computer Science |

Let $[K_n,f,\pi]$ be the (global) SDS map of a sequential dynamical system (SDS) defined over the complete graph $K_n$ using the update order $\pi\in S_n$ in which all vertex functions are equal to the same function $f\colon\mathbb F_2^n\to\mathbb F_2^n$. Let $\eta_n$ denote the maximum number of periodic orbits of period $2$ that an SDS map of the form $[K_n,f,\pi]$ can have. We show that $\eta_n$ is equal to the maximum number of codewords in a binary code of length $n-1$ with minimum distance at least $3$. This result is significant because it represents the first interpretation of this fascinating coding-theoretic sequence other than its original definition.

Source : oai:arXiv.org:1509.03907

Volume: Vol. 19 no. 3

Section: Combinatorics

Published on: October 3, 2017

Accepted on: October 3, 2017

Submitted on: May 30, 2017

Keywords: Mathematics - Combinatorics,Computer Science - Information Theory,37E15, 05C69

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