Lauric, Vasile A generalized Fuglede-Putnam theorem for a class of almost normal tuples of operators with finite modulus of Hilbert-Schmidt quasitriangularity. (English) Zbl 1474.47058 Acta Sci. Math. 86, No. 3-4, 563-575 (2020). Reviewer: Mihai Putinar (Santa Barbara) MSC: 47B20 47B10 47B47 × Cite Format Result Cite Review PDF Full Text: DOI
Rashid, M. H. M.; Cho, Muneo; Prasad, T.; Tanahashi, Kotaro; Uchiyama, Atsushi Weyl’s theorem and Putnam’s inequality for class \(p-wA(s,t)\) operators. (English) Zbl 1424.47051 Acta Sci. Math. 84, No. 3-4, 573-589 (2018). Reviewer: Khristo N. Boyadzhiev (Ada) MSC: 47B20 47A10 × Cite Format Result Cite Review PDF Full Text: DOI
Duggal, B. P. On the spectrum of \(p\)-hyponormal operators. (English) Zbl 0893.47013 Acta Sci. Math. 63, No. 3-4, 623-637 (1997). Reviewer: Gerhard Garske (Hagen) MSC: 47B20 47A10 47A60 × Cite Format Result Cite Review PDF
Furuta, Takayuki On the polar decomposition of an operator. (English) Zbl 0539.47014 Acta Sci. Math. 46, 261-268 (1983). MSC: 47B20 47A05 × Cite Format Result Cite Review PDF
Takahashi, Katsutoshi On the converse of the Fuglede-Putnam theorem. (English) Zbl 0472.47013 Acta Sci. Math. 43, 123-125 (1981). MSC: 47B15 47B20 × Cite Format Result Cite Review PDF