Title
McCammond's normal forms for free aperiodic semigroups revisited.
Abstract
This paper revisits the solution of the word problem for w-terms interpreted over finite aperiodic semigroups, obtained by J. McCammond. The original proof of correctness of McCammond's algorithm, based on normal forms for such terms, uses McCammond's solution of the word problem for certain Burnside semigroups. In this paper, we establish a new, simpler, correctness proof of McCammond's algorithm, based on properties of certain regular languages associated with the normal forms. This method leads to new applications.
Year
DOI
Venue
2014
10.1112/S1461157014000448
LMS JOURNAL OF COMPUTATION AND MATHEMATICS
Field
DocType
Volume
Discrete mathematics,Correctness proofs,Star-free language,Algebra,Word problem (mathematics education),Correctness,Aperiodic semigroup,Regular language,Aperiodic graph,Mathematics
Journal
18
Issue
ISSN
Citations 
1.0
1461-1570
1
PageRank 
References 
Authors
0.38
7
3
Name
Order
Citations
PageRank
J. Almeida16115.24
José Carlos Costa2174.57
Marc Zeitoun328824.51