Unitary colligations in Π_κ-spaces, characteristic functions and Štraus extensions

Aad Dijksma, Heinz K. Langer and Hendrik S. V. de Snoo

Vol. 125 (1986), No. 2, 347–362

DOI: 10.2140/pjm.1986.125.347

Abstract

The main result of this paper is the description of certain linear manifolds T(λ), associated with a symmetric operator, in terms of certain boundary values of the characteristic function of a unitary colligation.

Mathematical Subject Classification 2000

Primary: 47B25

Secondary: 47A45, 47B50

Milestones

Received: 1 July 1985

Revised: 10 October 1985

Published: 1 December 1986