Oct 2026
Optimized numerical radius bounds
F. Alrimawi, H. Moradi, M. Sababheh
· Annali dell?Università di Fe... · 0 citations
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Preprint
Oct 2026
Integral Representations and Sharp Numerical Radius Inequalities for Hilbert Space Operators
We study the numerical radius \(\omega(T)\) of a bounded linear operator \(T\) on a complex Hilbert space. Write \(T=A+iB\), where \(A\) and \(B\) are the real and imaginary parts of \(T\). A central result is the exact formula \[ \omega(T)=\frac{\pi}{2}\sup_{\|x\|=1}\int_0^1 \left|\left\langle (A\cos \pi t+B\sin \pi t...
W. Audeh, F. Kıttaneh, H. Moradi
· 0 citations