Title of article :
Refinements of Numerical Radius Inequalities Via Specht’s Ratio
Author/Authors :
Khatib, Yaser Islamic Azad University Mashhad Branch, Mashhad , Hassani, Mahmoud Islamic Azad University Mashhad Branch, Mashhad , Amyari, Maryam Islamic Azad University Mashhad Branch, Mashhad
Abstract :
We present some new numerical radius inequalities of Hilbert
space operators. We improve and generalize some inequalities with respect
to Specht’s ratio. Let A and B be two positive invertible operators
on a Hilbert space H and let X be a bounded operator on H
Keywords :
positive operators , normalized positive linear map , numerical radius , Specht’s ratio
Journal title :
Journal of Mathematical Extension(IJME)
