Atlas home || Conferences | Abstracts | about Atlas

19th International Conference on Operator Theory
June 27 - July 2, 2002
Institute of Mathematics of the Romanian Academy and the Faculty of Mathematics of the West University of Timisoara
Timisoara, Romania

View Abstracts
Conference Homepage

Computation of the \rho -numerical radius for troncated shifts
by
Laurent Carrot
IGD Lyon1

We are interested in computing the \rho -numerical radius of the troncated shift Sn on l2n. This value, first computed for \rho = 2 by Haageruup and De La Harpe, appears as a reference in constrained Von Neumann inequalities. In this talk, we give an effective way of computing this value in the general case, and then some exact formulas in particular cases.

Date received: June 4, 2002

Copyright © 2002 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caiz-48.