Anyembe, Lilian Properties of unitary quasi-equivalence on partial isometry, skew n-Binormal and Posinormal operations in Hilbert spaces - Chuka, Kenya Chuka University 2023 - 70 leaves Subjects--Topical Terms: 1. Representatives of groups---Unitary2. Unitary groups LC Class. No.: THE QA 176 / .A94 2023