Ideals and Invariant Subspaces of Analytic Functions
Ideals and Invariant Subspaces of Analytic Functions
MICHAEL VOICHICK(Z) 1. Introduction.Let K be the open unit disk and A, the unit circle.It is well known that if/ is a bounded analytic function on K then it has nontangential boundary values/*(e,e) a.e.(almost everywhere) on A. We say / is an inner function if |/* | = 1 a.e. …