5-Abelian cubes are avoidable on binary alphabets
Saarela A; Mercas R
5-Abelian cubes are avoidable on binary alphabets
Saarela A
Mercas R
EDP Sciences
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042715069
https://urn.fi/URN:NBN:fi-fe2021042715069
Tiivistelmä
A k-abelian cube is a word uvw, where the factors u, v, and w are either pairwise equal, or have the same multiplicities for every one of their factors of length at most k. Previously it has been shown that k-abelian cubes are avoidable over a binary alphabet for k >= 8. Here it is proved that this holds for k >= 5.
Kokoelmat
- Rinnakkaistallenteet [19207]