We give a complete characterization of the class of functions that are the intensional behaviours of primitive recursive (PR) algorithms. This class is the set of primitive recursive functions that have a null basic case of recursion. This result is obtained using the property of ultimate unarity and a geometrical approach of sequential functions on the set of positive integers.
@article{ITA_2008__42_1_69_0, author = {Valarcher, P.}, title = {A complete characterization of primitive recursive intensional behaviours}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, volume = {42}, year = {2008}, pages = {69-82}, doi = {10.1051/ita:2007053}, mrnumber = {2382552}, zbl = {1148.68388}, language = {en}, url = {http://dml.mathdoc.fr/item/ITA_2008__42_1_69_0} }
Valarcher, P. A complete characterization of primitive recursive intensional behaviours. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 42 (2008) pp. 69-82. doi : 10.1051/ita:2007053. http://gdmltest.u-ga.fr/item/ITA_2008__42_1_69_0/
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