Operators and Matrices vol. 7, no. 1, pp. 167 - 182
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
In this paper, we study various properties of analytic extensions of class A operators. In particular, we show that every analytic extension of a class A operator has a scalar extension. As a corollary, we get that such an operator with rich spectrum has a nontrivial invariant subspace.