Generalized symplectic rational blowdowns. Symington, Margarete (2001) Algebraic & Geometric Topology
Groups of C r , s -diffeomorphisms related to a foliation Jacek Lech, Tomasz Rybicki (2007) Banach Center Publications The notion of a C r , s -diffeomorphism related to a foliation is introduced. A perfectness theorem for the group of C r , s -diffeomorphisms is proved. A remark on C n + 1 -diffeomorphisms is given.