Equivalence of decomposable and 2-decomposable operators

Mehdi Radjabalipour

Vol. 77 (1978), No. 1, 243–247

DOI: 10.2140/pjm.1978.77.243

Abstract

It is shown that every 2-decomposable operator (in the sense of S. Plafker) is decomposable (in the sense of C. Foias); this answers a question raised by Plafker.

Mathematical Subject Classification 2000

Primary: 47B40

Milestones

Received: 2 August 1976

Revised: 1 November 1977

Published: 1 July 1978