Soit un anneau commutatif, une -algèbre commutative et l’anneau filtré des opérateurs différentiels -linéaires de . Nous montrons que : (1) l’anneau gradué admet un plongement canonique dans le dual gradué de l’algèbre symétrique du module des différentielles de sur , qui a une structure canonique de puissances divisées. (2) Il existe un morphisme canonique de l’algèbre des puissances divisées du module des dérivations -linéaires et intégrables dans le sens de Hasse-Schmidt de vers . (3) Les morphismes et forment partie d’un diagramme commutatif canonique.
Let be a commutative ring, a commutative -algebra and the filtered ring of -linear differential operators of . We prove that: (1) The graded ring admits a canonical embedding into the graded dual of the symmetric algebra of the module of differentials of over , which has a canonical divided power structure. (2) There is a canonical morphism from the divided power algebra of the module of -linear Hasse–Schmidt integrable derivations of to . (3) Morphisms and fit into a canonical commutative diagram.
@article{AIF_2009__59_7_2979_0, author = {Narv\'aez Macarro, Luis}, title = {Hasse--Schmidt derivations, divided powers and differential smoothness}, journal = {Annales de l'Institut Fourier}, volume = {59}, year = {2009}, pages = {2979-3014}, doi = {10.5802/aif.2513}, zbl = {1184.13076}, mrnumber = {2649344}, language = {en}, url = {http://dml.mathdoc.fr/item/AIF_2009__59_7_2979_0} }
Narváez Macarro, Luis. Hasse–Schmidt derivations, divided powers and differential smoothness. Annales de l'Institut Fourier, Tome 59 (2009) pp. 2979-3014. doi : 10.5802/aif.2513. http://gdmltest.u-ga.fr/item/AIF_2009__59_7_2979_0/
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