Trifferent codes with small lengths

Fuente: arXiv
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Main Author: Kurz, Sascha
Format: Preprint
Published: 2023
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author Kurz, Sascha
author_facet Kurz, Sascha
contents A code $C \subseteq \{0, 1, 2\}^n$ of length $n$ is called trifferent if for any three distinct elements of $C$ there exists a coordinate in which they all differ. By $T(n)$ we denote the maximum cardinality of trifferent codes with length. $T(5)=10$ and $T(6)=13$ were recently determined. Here we determine $T(7)=16$, $T(8)=20$, and $T(9)=27$. For the latter case $n=9$ there also exist linear codes attaining the maximum possible cardinality $27$.
format Preprint
id arxiv_https___arxiv_org_abs_2310_13563
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Trifferent codes with small lengths
Kurz, Sascha
Combinatorics
Discrete Mathematics
68R05, 68Q17
A code $C \subseteq \{0, 1, 2\}^n$ of length $n$ is called trifferent if for any three distinct elements of $C$ there exists a coordinate in which they all differ. By $T(n)$ we denote the maximum cardinality of trifferent codes with length. $T(5)=10$ and $T(6)=13$ were recently determined. Here we determine $T(7)=16$, $T(8)=20$, and $T(9)=27$. For the latter case $n=9$ there also exist linear codes attaining the maximum possible cardinality $27$.
title Trifferent codes with small lengths
topic Combinatorics
Discrete Mathematics
68R05, 68Q17
url https://arxiv.org/abs/2310.13563