Quasiaffine transforms of operators
Volume 193 / 2009
Studia Mathematica 193 (2009), 263-267 MSC: Primary 47A15. DOI: 10.4064/sm193-3-3
We obtain a new sufficient condition (which may be useful elsewhere) that a compact perturbation of a normal operator be the quasiaffine transform of some normal operator. We also give some applications of this result.