Title
Language structure of pattern Sturmian words
Abstract
Pattern Sturmian words introduced by Kamae and Zamboni [Sequence entropy and the maximal pattern complexity of infinite words, Ergodic Theory Dynamical Systems 22 (2002) 1191-1199; Maximal pattern complexity for discrete systems, Ergodic Theory Dynamical Systems 22 (2002) 1201-1214] are an analogy of Sturmian words for the maximal pattern complexity instead of the block complexity. So far, two kinds of recurrent pattern Sturmian words are known, namely, rotation words and Toeplitz words. But neither a structural characterization nor a reasonable classification of the recurrent pattern Sturmian words is known. In this paper, we introduce a new notion, pattern Sturmian sets, which are used to study the language structure of pattern Sturmian words. We prove that there are exactly two primitive structures for pattern Sturmian words. Consequently, we suggest a classification of pattern Sturmian words according to structures of pattern Sturmian sets and prove that there are at most three classes in this classification. Rotation words and Toeplitz words fall into two different classes, but no examples of words from the third class are known.
Year
DOI
Venue
2006
10.1016/j.disc.2006.03.043
Discrete Mathematics
Keywords
Field
DocType
language structure,uniform complexity,pattern sturmian word,ergodic theory,discrete system,dynamic system,sturmian word
Discrete mathematics,Combinatorics,Sturmian word,Ergodic theory,Toeplitz matrix,Dynamical systems theory,Analogy,Mathematics
Journal
Volume
Issue
ISSN
306
15
Discrete Mathematics
Citations 
PageRank 
References 
4
0.95
9
Authors
4
Name
Order
Citations
PageRank
Teturo Kamae1255.20
Hui Rao2234.58
Bo Tan3223.89
Yu-Mei Xue4153.32