Quasi-similar k-paranormal operators
نویسندگان
چکیده
منابع مشابه
On Quasi ∗-paranormal Operators
An operator T ∈ B(H) is called quasi ∗-paranormal if ||T ∗Tx||2 ≤ ||T x|||Tx|| for all x ∈ H. If μ is an isolated point of the spectrum of T , then the Riesz idempotent E of T with respect to μ is defined by
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Let B(H) be the set of all bounded endomorphisms (operators) on the complex Hubert space H. T € B(H) is paranormal if \\(T — z/) || = l/d(z, cr(T)) for all z £ cr(T) where d(z, cr(T)) is the distance from z to cr(T), the spectrum of T. If J is the set of all paranormal operators on H, then J contains the normal operators, JÍ, and the hyponormal operators; and J is contained in JL, the set of al...
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ژورنال
عنوان ژورنال: Operators and Matrices
سال: 2011
ISSN: 1846-3886
DOI: 10.7153/oam-05-29