Type: Article
Publication Date: 1974-01-01
Citations: 21
DOI: https://doi.org/10.1090/s0002-9947-1974-0343088-8
An investigation is made of the interdependence and properties of the spectrum of a hyponormal operator <italic>T</italic> and of the spectra, and absolutely continuous spectra, of the factors in a polar factorization of <italic>T</italic> when the latter exists.