Sommaire

An introduction to spherical orbit spaces.
p. 453
Rate of convergence on Baskakov-Beta-Bézier operators for bounded variation functions.
p. 471
Chern classes of integral submanifolds of some contact manifolds.
p. 481
Perturbations of an Ostrowski type inequality and applications.
p. 491
Generalized derivation modulo the ideal of all compact operators.
p. 501
Completely contractive maps between -algebras.
p. 507