2 papers
math.FA2025
New Properties and Refined Bounds for the -Numerical Range
Mohammad H. M. Rashid
This paper investigates new properties of -numerical ranges for compact normal operators and establishes refined upper bounds for the -numerical radius of Hilbert space opera…
math.FA2024
Elevating Precision in Inequalities for Numerical Radii and Operator Matrices
M. H. M. Rashid
In this paper, we aim to establish a range of numerical radius inequalities. These discoveries will bring us to a recently validated numerical radius inequality and will present nu…