7 papers · 1 filter
The essential norm, block sizes, and some Generalized Hilbert operators on lp
David Norrbo
We examine the generalized Hilbert (matrix) operators on the spaces, $1<p<\…
Weak cluster points of maximizing sequences on Banach spaces satisfying
David Norrbo
Given a bounded linear operator on a separable Banach space with property , we prove that the smallest and the largest norm of weak cluster points of all maximizing sequ…
Weak null maximum and integration of families of multiplication operators
David Norrbo
Let be a reflexive Hardy space or weighted Bergman space on the unit disk in the complex plane. For a bounded linear operator on , let $\textrm{wem}(S):= \sup_{(f_n)} \l…
Essential norm and integration of a family of weighted composition operators
David Norrbo
We study the interchange of essential norm and integration of certain families of weighted composition operators acting on the standard weighted Bergman spaces , where …
Compactness and related properties of weighted composition operators on weighted BMOA spaces
David Norrbo
It is shown that a large class of properties coincide for weighted composition operators on a large class of weighted VMOA spaces, including the ones with logarithmic weights and t…
Exact essential norm of generalized Hilbert matrix operators on classical analytic function spaces
Mikael Lindström, Santeri Miihkinen, David Norrbo
We compute the exact value of the essential norm of a generalized Hilbert matrix operator acting on weighted Bergman spaces and weighted Banach spaces of analy…