Originally published: New York: Marcel Dekker, Inc., 1988.

Completion problems for operator matrices are concerned with the question of whether a partially specified operator matrix can be completed to form an operator

This textbook introduces spectral theory for bounded linear operators by focusing on (i) the spectral theory and functional calculus for normal operators acting

Written by an author who was at the forefront of developments in multivariable spectral theory during the seventies and the eighties, this book describes the sp

This book is dedicated to the spectral theory of linear operators on Banach spaces and of elements in Banach algebras. It presents a survey of results concernin