๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

On the unitarily invariant norms and some related results

โœ Scribed by Li, Chi-Kwong; Tsing, Nam-Kiu


Book ID
120675065
Publisher
Taylor and Francis Group
Year
1987
Tongue
English
Weight
502 KB
Volume
20
Category
Article
ISSN
0308-1087

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Unitarily invariant norms related to the
โœ T. Ando ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 82 KB

We determine the maximum in the class of unitarily invariant norms โ€ข such that w(A) A for all n-square matrices A. Here w(A) denotes the numerical radius of A.

On weakly unitarily invariant norm and t
โœ K. Okubo ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 85 KB

In this paper we show that where T โˆˆ B(H), ||| โ€ข ||| is a semi-norm on B(H) which satisfies some conditions, T = UP (polar decomposition), 0 ฮป 1 and f is a polynomial. As a consequence of this fact, we will show that some semi-norms ||| โ€ข ||| including the ฯ-radii (0 < ฯ 2) satisfy the inequality |