Three quavers on unitary elements in C^∗-algebras

Gert Kjærgaard Pedersen

Vol. 137 (1989), No. 1, 169–179

DOI: 10.2140/pjm.1989.137.169

Abstract

Unitary polar decomposition of elements in C^∗-algebras is discussed in relation to the theory of unitary rank; and characterizations of algebras admitting weak or unitary polar decomposition of every element are given.

Mathematical Subject Classification 2000

Primary: 46L05

Milestones

Received: 17 February 1988

Published: 1 March 1989