On the vanishing of cohomology groups with values in a product sheaf.
On the Variational Characterization of Bivariate Interpolation Methods.
On the volume of unit balls in Banach spaces
On topologically nilpotent algebras
On Totally Barreled Spaces.
On ultrapowers of Banach spaces of type
We prove that no ultraproduct of Banach spaces via a countably incomplete ultrafilter can contain c₀ complemented. This shows that a "result" widely used in the theory of ultraproducts is wrong. We then amend a number of results whose proofs have been infected by that statement. In particular we provide proofs for the following statements: (i) All M-spaces, in particular all C(K)-spaces, have ultrapowers isomorphic to ultrapowers of c₀, as also do all their complemented subspaces isomorphic to their...
On ultrapowers of linear topological spaces without convexity conditions.
On Weighted Inductive Limits of Spaces of Continuous Function.
Ondelettes, espaces d’interpolation et applications
Nous établissons des résultats d’interpolation non-standards entre les espaces de Besov et les espaces et , avec des applications aux lemmes de régularité en moyenne et aux inégalités de type Gagliardo-Nirenberg. La preuve de ces résultats utilise les décompositions dans des bases d’ondelettes.
Opérateurs sommants et factorisations. A travers les espaces
Operations on continuous bundles of C*-algebras.
Operator algebras
Operator inequalities, geodesics and interpolation
Operator representation of weakly Cauchy sequences in projective tensor product of Banach spaces.
Operator spaces and similarity problems.
Operators, Fuchsian groups and automorphic bundles.
Operators whose tensor powers are --continuous
Optimization Problems for KG.
Order bounded operators and tensor products of Banach lattices.
Order Structures, Traces and Weights on Morita Equivalent C*-Algebras.