This concise monograph explores how core ideas in Hardy space function theory and operator theory continue to be useful and informative in new settings, leading

Over the course of his distinguished career, Jörg Eschmeier made a number of fundamental contributions to the development of operator theory and related topics

This is a collection of papers presented at a conference on multivariable operator theory. The articles contain contributions to a variety of areas and topics w

This paper concerns unitary invariants for $n$-tuples $T:=(T_1,\ldots, T_n)$ of (not necessarily commuting) bounded linear operators on Hilbert spaces. The auth

A one-sentence definition of operator theory could be: The study of (linear) continuous operations between topological vector spaces, these being in general (bu