Commutativity of Unbounded Normal and Self-adjoint Operators and Applications (1301.1632v1)

Published 8 Jan 2013 in math.FA and math.OA

Abstract: Devinatz, Nussbaum and von Neumann established some important results on the strong commutativity of self-adjoint and normal unbounded operators. In this paper, we prove results in the same spirit.