Operator inequalities and normal operators
نویسندگان
چکیده
منابع مشابه
Inequalities for Normal Operators in Hilbert Spaces
Let (H ; 〈·, ·〉) be a complex Hilbert space and T : H → H a bounded linear operator on H. Recall that T is a normal operator if T T = TT . Normal operators may be regarded as a generalisation of self-adjoint operator T in which T ∗ need not be exactly T but commutes with T [11, p. 15]. The numerical range of an operator T is the subset of the complex numbers C given by [11, p. 1]: W (T ) = {〈Tx...
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ژورنال
عنوان ژورنال: Banach Journal of Mathematical Analysis
سال: 2012
ISSN: 1735-8787
DOI: 10.15352/bjma/1342210170