It is known that the class of factorizing codes, i.e., codes satisfying the factorization conjecture formulated by Schützenberger, is closed under two operations: the classical composition of codes and substitution of codes. A natural question which arises is whether a finite set of operations exists such that each factorizing code can be obtained by using the operations in and starting with prefix or suffix codes. is named here a complete set of operations (for factorizing codes). We show that composition and substitution are not enough in order to obtain a complete set. Indeed, we exhibit a factorizing code over a two-letter alphabet , precisely a code, which cannot be obtained by decomposition or substitution.
@article{ITA_2006__40_1_29_0, author = {Felice, Clelia De}, title = {On a complete set of operations for factorizing codes}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, volume = {40}, year = {2006}, pages = {29-52}, doi = {10.1051/ita:2005040}, mrnumber = {2197282}, zbl = {1091.94017}, language = {en}, url = {http://dml.mathdoc.fr/item/ITA_2006__40_1_29_0} }
Felice, Clelia De. On a complete set of operations for factorizing codes. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 40 (2006) pp. 29-52. doi : 10.1051/ita:2005040. http://gdmltest.u-ga.fr/item/ITA_2006__40_1_29_0/
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