SPECTRAL RADIUS ALGEBRAS AND C0 CONTRACTIONS. II

摘要

We consider spectral radius algebras associated with C0 contractions. When the operator A is algebraic, we describe all invariant subspaces that are common for operators in its spectral radius algebra a??A. When the operator A is not algebraic, a??A is weakly dense and we characterize a set of rank-one operators in a??A that is weakly dense in a?’(a??).