Superstability of multipliers and ring derivations on Banach algebras.
Sur des Algebres Topologiques (I_j)_j |in J - Adiques
Sur des applications du calcul fonctionnel holomorphe
Sur la continuité automatique des épimorphismes dans les -algèbres de Banach.
Sur la décomposition d'une algèbre topologique en produit cartésien d'idéaux
Sur la division et la composition dans des classes ultradifférentiables
We generalize to some classes of ultradifferentiable jets or functions the classical Łojasiewicz Division Theorem and Glaeser Composition Theorem. The proof uses the desingularization results by Hironaka, Bierstone and Milman.
Sur la semi-norme spectrale supérieure des algèbres de Banach ultramétrique.
Sur la transformation de Dirac d'un espace à génération compacte
Sur le radical permanent dans les algèbres topologiques
Sur les conjectures de Hirschfeld et Zelazko dans les algèbres de Banach
Sur les transformations additives qui conservent le spectre de surjection.
Sur l'expression du radical et du spectre dans une algèbre normée non complète.
Survey of some results in spectral theory obtained in Prague
Symbolic calculus on weighted group algebras
Symmetric Banach *-algebras: invariance of spectrum
Let A be a Banach *-algebra which is a subalgebra of a Banach algebra B. In this paper, assuming that A is symmetric, various conditions are given which imply that A is inverse closed in B.
Symmetric Manifolds of Compact type Associated to the JB*-Triples Co (X,Z).
Tensor products of topological algebras and analytic sets
The beginning of the spectral theory of Nevanlinna's mapping from topological space to endomorphisms algebra of Banach space and its applications.
The -algebra of a Hilbert bimodule
Un -modulo hilbertiano destro su una -algebra dotato di uno -omomorfismo isometrico viene qui considerato come un oggetto della -categoria degli -moduli Hilbertiani destri. Come in [11], associamo ad esso una -algebra contenente come un «-bimodulo hilbertiano in ». Se è pieno e proiettivo finito è la -algebra , la generalizzazione delle algebre di Cuntz-Krieger introdotta da Pimsner [27] (e in un caso particolare da Katayama [31]). Più in generale, è canonicamente immersa...
The canonical test case for the non-commutative Singer-Wermer conjecture
It is a famous conjecture that every derivation on each Banach algebra leaves every primitive ideal of the algebra invariant. This conjecture is known to be true if, in addition, the derivation is assumed to be continuous. It is also known to be true if the algebra is commutative, in which case the derivation necessarily maps into the (Jacobson) radical. Because I. M. Singer and J. Wermer originally raised the question in 1955 for the case of commutative Banach algebras, the conjecture is...