Abu-Omar, Amer; Kittaneh, Fuad A numerical radius inequality involving the generalized Aluthge transform. (English) Zbl 1279.47015 Stud. Math. 216, No. 1, 69-75 (2013). Reviewer: Maryam Khosravi (Kerman) MSC: 47A12 47A10 47A30 × Cite Format Result Cite Review PDF Full Text: DOI
Yamazaki, Takeaki On upper and lower bounds of the numerical radius and an equality condition. (English) Zbl 1114.47003 Stud. Math. 178, No. 1, 83-89 (2007). Reviewer: Pei Yuan Wu (Hsinchu) MSC: 47A12 47A30 47A20 × Cite Format Result Cite Review PDF Full Text: DOI