A sharpened Schwarz-Pick operatorial inequality for nilpotent operators

DOI10.1512/IUMJ.2012.61.4946zbMath1275.47012arXiv1202.3962OpenAlexW1975869334MaRDI QIDQ4918589

Haykel Gaaya

Publication date: 25 April 2013

Published in: Indiana University Mathematics Journal (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1202.3962

zbMATH Keywords

Toeplitz matricesnumerical radiusunilateral shiftmodel spaceunitary dilationPoncelet propertyvon Neumann inequalities\(\rho\)-dilationscompression shift

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) Linear operators on special spaces (weighted shifts, operators on sequence spaces, etc.) (47B37) Canonical models for contractions and nonselfadjoint linear operators (47A45)

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