The notion of a -diffeomorphism related to a foliation is introduced. A perfectness theorem for the group of -diffeomorphisms is proved. A remark on -diffeomorphisms is given.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc76-0-21, author = {Jacek Lech and Tomasz Rybicki}, title = {Groups of $C^{r,s}$-diffeomorphisms related to a foliation}, journal = {Banach Center Publications}, volume = {75}, year = {2007}, pages = {437-450}, zbl = {1122.22002}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc76-0-21} }
Jacek Lech; Tomasz Rybicki. Groups of $C^{r,s}$-diffeomorphisms related to a foliation. Banach Center Publications, Tome 75 (2007) pp. 437-450. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc76-0-21/