Variétés CR polarisées et G-polarisées, partie I

Polarized and G-polarized CR manifolds are smooth manifolds endowed with a double structure: a real foliation &em&F&/em& (given by the action of a Lie group G in the G-polarized case) and a transverse CR distribution. Polarized means that (E,J) is roughly speaking invariant by&em&F&/em&. Both structures are therefore linked up. The interplay between them gives to polarized CR-manifolds a very rich geometry. In this paper, we study the properties of polarized and G-polarized manifolds, putting special emphasis on their deformations.

Sermons des auteurs suivants : G. ep. Paris., Joh. Polinus, G. ep. Cameracensis, Odo cardinalis, N. de Byart, Gerardus de Remis, Galterus de Castro Theoderic, Odo de Castro Radulfi cardinalis, Odo cancellarius Paris., Philippus cancellarius Paris., Henricus Theuthonicus, Stephanus de ordine Predicatorum, Hugo de S. Victore.

Au fol. 492v : In processione facta pro regina Blancha infirma, mag. Odo cancellarius.