Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1986__191_173656, author = {Arne Jensen}, title = {Commutator {Methods} and a {Smoothing} {Property} of the {Schr\"odinger} {Evolution} {Group.}}, journal = {Mathematische Zeitschrift}, pages = {53--60}, publisher = {mathdoc}, volume = {191}, year = {1986}, zbl = {0594.35032}, url = {http://geodesic.mathdoc.fr/item/MZ_1986__191_173656/} }
Arne Jensen. Commutator Methods and a Smoothing Property of the Schrödinger Evolution Group.. Mathematische Zeitschrift, Tome 191 (1986), pp. 53-60. http://geodesic.mathdoc.fr/item/MZ_1986__191_173656/