Articles with "inequality annulus" as a keyword



Photo from archive.org

A von Neumann type inequality for an annulus

Sign Up to like & get
recommendations!
Published in 2022 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2021.125714

Abstract: Let Ar = {r < |z| < 1} be an annulus. We consider the class of operators Fr := {T ∈ B(H) : rT(T) + TT ∗ ≤ r2 + 1, σ(T ) ⊂ Ar}… read more here.

Keywords: type inequality; neumann type; inequality annulus; von neumann ... See more keywords