TY - BOOK AU - Teresia Njeri Mbuthia TI - Quasi-similarity properties on 0-operations , partial isometries, operators and k-skew (n,m) binormal operators in hilbert spaces AV - THE QA 329.2 .M38 2025 PY - 2024///5 CY - chuka-kenya PB - chuka- university KW - 1. spectral theory....mathematics KW - 2. isometrics ....mathematics KW - 3. quasi..... similarity mathematics ER -