Decomposition of Positive Projections on C*-Algebras.
Derivation Algebras of JB-Algebras.
Derivations in Banach algebras.
Derivatons of Jordan C*-algebras.
Entire functions and -convex structure in commutative Baire algebras.
Erratum to: Derivation Algebras of JB-Algebras.
Expansional in banach algebras
Facial Structure of the Sum of Two Compact Convex Sets.
Fixed points and stability of an additive functional equation of -Apollonius type in -algebras.
Formes positives dans les -algèbres
Funktoren auf Kategorien von Banachräumen.
Generalized derivations on Lie ideals in prime rings
Let be a prime ring with its Utumi ring of quotients and extended centroid . Suppose that is a generalized derivation of and is a noncentral Lie ideal of such that for all , where is a fixed integer. Then one of the following holds:
Generalized group algebras and their bundles.
Generalized weights for operator Lie algebras
Holomorphic framings for projections in a Banach algebra.
Homogeneous self dual cones versus Jordan algebras. The theory revisited
Let be a Jordan-Banach algebra with identity 1, whose norm satisfies:(i) , (ii) (iii) . is called a JB algebra (E.M. Alfsen, F.W. Shultz and E. Stormer, Oslo preprint (1976)). The set of squares in is a closed convex cone. is a complete ordered vector space with as a order unit. In addition, we assume to be monotone complete (i.e. coincides with the bidual ), and that there exists a finite normal faithful trace on .Then the completion of with respect to the Hilbert structure...
Inversion in some algebras of singular integral operators.
Invertibility preserving linear mappings into M₂(ℂ)
We study discontinuous invertibility preserving linear mappings from a Banach algebra into the algebra of n × n matrices and give an explicit representation of such a mapping when n = 2.
JB algebras with an exceptional ideal.
Mean growth and Taylor coefficients of some topological algebras of analytic functions