Sommaire

Sharp inequalities for Riesz transforms
p. 1
On nested sequences of convex sets in Banach spaces
p. 19
Distances between Hilbertian operator spaces
p. 29
Maximal singular integrals on product homogeneous groups
p. 41
Unconditionality of orthogonal spline systems in $L^{p}$
p. 51
Simultaneous solutions of operator Sylvester equations
p. 87