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Closure of similarity orbits of Hilbert space operators. III

✍ Scribed by Domingo A. Herrero


Publisher
Springer
Year
1978
Tongue
English
Weight
560 KB
Volume
232
Category
Article
ISSN
0025-5831

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The sum of unitary similarity orbits con
✍ Chi-Kwong Li; Yiu-Tung Poon πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 172 KB

Let B(H) be the algebra of bounded linear operator acting on a Hilbert space H (over the complex or real field). Characterization is given to A 1 , . . ., A k ∈ B(H) such that for any unitary operators U 1 , . . ., U k , k j=1 U \* j A j U j is always in a special class S of operators such as normal