RAIRO-Theor. Inf. Appl.
Volume 34, Number 4, July/August 2000
|Page(s)||307 - 330|
|Published online||15 April 2002|
Semi-commutations and Partial commutations
LIFL, bâtiment M3, Cité Scientifique,
59655 Villeneuve-d'Ascq Cedex, France; (email@example.com)
2 LIFL, bâtiment M3, Cité Scientifique, 59655 Villeneuve-d'Ascq Cedex, France; (firstname.lastname@example.org)
3 LIFL, bâtiment M3, Cité Scientifique, 59655 Villeneuve-d'Ascq Cedex, France; (email@example.com)
Accepted: 21 September 2000
The aim of this paper is to show that a semi-commutation function can be expressed as the compound of a sequential transformation, a partial commutation function, and the reverse transformation. Moreover, we give a necessary and sufficient condition for the image of a regular language to be computed by the compound of two sequential functions and a partial commutation function.
Mathematics Subject Classification: 68Q45 / 68Q85
© EDP Sciences, 2000
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