Open Access
Research Article·pp. 761–774·Vol. 26, Issue 4Jun 2023
General upper bounds for the numerical radius on complex Hilbert space
Mohammed Al-Dolat, Khaldoun Al-Zoubi
Published Online: 19 Aug 2023DOI: 10.47974/JIM-1512
In this paper: In this work, we show that if {Ai}mi=1 and {Xi}mi=1 are two sets of bounded linear operators on the complex Hilbert space H, then for every n ∈ ℕ and m > 2, we have w(A1n–1 (Si=0 m–1 Am–i Xm–i A*i+...
