On neighborhoods of the Kuratowski imbedding beyond the first extremum of the diameter functional
On operator ideals related to (p,σ)-absolutely continuous operators
We study tensor norms and operator ideals related to the ideal , 1 < p < ∞, 0 < σ < 1, of (p,σ)-absolutely continuous operators of Matter. If α is the tensor norm associated with (in the sense of Defant and Floret), we characterize the -nuclear and - integral operators by factorizations by means of the composition of the inclusion map with a diagonal operator , where r is the conjugate exponent of p’/(1-σ). As an application we study the reflexivity of the components of the ideal...
On projections in spaces of bounded analytic functions with applications
On pseudonormability of some particular classes of spaces
On quasi-free Hilbert modules.
On reflective subcategories of quasiabelian categories.
On regularity of inductive limits
On reiteration and the behaviour of weak compactness under certain interpolation methods.
This article deals with K- and J-spaces defined by means of polygons. First we establish some reiteration formulae involving the real method, and then we study the behaviour of weakly compact operators. We also show optimality of the weak compactness results.
On Relative Commutants in Tensor Products of C*-algebras.
On S. Mazur's problems 8 and 88 from the Scottish Book
The paper discusses Problems 8 and 88 posed by Stanisław Mazur in the Scottish Book. It turns out that negative solutions to both problems are immediate consequences of the results of Peller [J. Operator Theory 7 (1982)]. We discuss here some quantitative aspects of Problems 8 and 88 and give answers to open problems discussed in a recent paper of Pełczyński and Sukochev in connection with Problem 88.
On smooth extensions of odd dimensional spheres and multidimensional Helton and Howe formula.
On some isomorphism on the category of -spaces.
On some matrix Inequalities in Banach Spaces
On some Properties of the ε-Product of Nuclear b-spaces
On Sparr and Fernandez's interpolation methods of Banach spaces.
On Taylor functional calculus
On tensor porducts of von Neumann algebras.
On Tensor Product Characterization of Nuclear Spaces.
On Tensor Product of Vector Measures in Locally Compact Spaces