2 papers
math.FA2020
Approximate numerical radius orthogonality
Maryam Amyari, Marzieh Moradian Khibary
We introduce the notion of approximate numerical radius (Birkhoff) orthogonality and investigate its significant properties. Let and $\varepsilon…
math.FA2020
More on -orthogonality and -parallelism
Maryam Torabian, Maryam Amyari, Marzieh Moradian Khibary
We investigate some aspects of various numerical radius orthogonalities and numerical radius parallelism for bounded linear operators on a Hilbert space . Among severa…