On reducibility of some operator semigroups and algebras on locally convex spaces.
On some Banach ideals of operators
On strongly closed subalgebras of B(X)
On the equality of injective and projective tensor products
On the Relationship Between yp-Radonifying Operators and Other Operator Ideals in Banach Spaces of Stable Type p.
On the Tensor Stability of s-Number Ideals.
On the three-space property for locally convex spaces.
On the weak amenability of ℬ(X)
We investigate the weak amenability of the Banach algebra ℬ(X) of all bounded linear operators on a Banach space X. Sufficient conditions are given for weak amenability of this and other Banach operator algebras with bounded one-sided approximate identities.
On Transitive and Reductive Operator Algebras.
Operatorenalgebren mit einer endlichen Anzahl von maximalen Idealen
Operators acting on certain Banach spaces of analytic functions.
Operators Factoring through Banach Lattices and Ideal Norms
A new, unified presentation of the ideal norms of factorization of operators through Banach lattices and related ideal norms is given.
Operators in finite distributive subspace lattices II
In a previous paper we gave an example of a finite distributive subspace lattice ℒ on a Hilbert space and a rank two operator of Algℒ that cannot be written as a finite sum of rank one operators from Algℒ. The lattice ℒ was a specific realization of the free distributive lattice on three generators. In the present paper, which is a sequel to the aforementioned one, we study Algℒ for the general free distributive lattice with three generators (on a normed space). Necessary and sufficient conditions...
Polynomial identification in uniform and operator algebras.
p-representable operators in Banach spaces.
Quantitative unconditionality of Banach spaces E for which K(E) is an M-ideal in ℒ(E)
Reelle Jordanalgebren mit endlicher Spur.
Regular operators on partial inner product spaces
Regularisierung von Fredholmfunktionen.
Relative Inversion in der Störungstheorie von Operatoren und ...-Algebren.