Inverses of Words
Séminaire lotharingien de combinatoire, Tome 39 (1997)
Voir la notice de l'acte provenant de la source Séminaire Lotharingien de Combinatoire website
The inverse of a permutation is one of the basic operations in the symmetric group. In this paper we propose an extension of this operation to words (with repetitions) by constructing an explicit one-to-one transformation on words. We also show that there exists another transformation having one more property that would be the definitive bijection for deriving the inverse of a word. The open problem is to imagine its construction.
Correction
The only change brought to the old version is the correction of the data in the example at the end of section 3. Only one sentence was modified. The correction was made by Alex Burnstein (Philadelphia) on May 4, 1998.
@article{SLC_1997_39_a3,
author = {Dominique Foata and Guo-Niu Han},
title = {Inverses of {Words}},
journal = {S\'eminaire lotharingien de combinatoire},
publisher = {mathdoc},
volume = {39},
year = {1997},
url = {http://geodesic.mathdoc.fr/item/SLC_1997_39_a3/}
}
Dominique Foata; Guo-Niu Han. Inverses of Words. Séminaire lotharingien de combinatoire, Tome 39 (1997). http://geodesic.mathdoc.fr/item/SLC_1997_39_a3/