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Palindromic Length in Free Monoids and Free Groups

open access: yes, 2017
Palindromic length of a word is defined as the smallest number n such that the word can be written as a product of n palindromes. It has been conjectured that every aperiodic infinite word has factors of arbitrarily high palindromic length. A stronger variant of this conjecture claims that every aperiodic infinite word has also prefixes of arbitrarily ...
openaire   +2 more sources

Pattern Hopf Algebras. [PDF]

open access: yesAnn Comb, 2022
Penaguiao R.
europepmc   +1 more source

Some Properties of Disjunctive Languages on a Free Monoid

open access: yesInformation and Control, 1978
C. Reis, H. Shyr
semanticscholar   +1 more source

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