Journal article
A research problem: A generalized numerical radius
Linear & multilinear algebra, v 41(1)
01 Jul 1996
Abstract
We present a conjecture which when true would generalize T. Ando's characterization of the numerical radius of (bounded linear) operators on a Hilbert space (see [A]). Some evidence for the validity of the conjecture is given. In the finite dimensional case we shall restate the conjecture in terms of convex matrix sets and norms on matrices that are invariant under unitary similarities (u.s.i. norms).
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Details
- Title
- A research problem
- Creators
- Chi-Kwong Li - William & MaryHugo J. Woerdeman - William & Mary
- Publication Details
- Linear & multilinear algebra, v 41(1)
- Publisher
- Gordon and Breach Science Publishers
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mathematics
- Scopus ID
- 2-s2.0-26444570032
- Other Identifier
- 991021866363804721