AbstractAs a common generalization of normal operators and strictly dissipative operators, the class of normalizable operators is introduced and studied in the finite-dimensional case. Results on simultaneous normalizability are also included
AbstractA full description is given of n-selfadjoint normal operators in Krein spaces of finite defe...
AbstractIn this work we characterize normal invertible operators via inequalities with unitarily inv...
Let $S$ and $T$ be (bounded) scalar operators on a Banach space $\scr X$ and let $C(T,S)$ be the map...
AbstractAs a common generalization of normal operators and strictly dissipative operators, the class...
AbstractLet A be a bounded linear operator on a Hilbert space H; denote |A| = (A∗A)12 and the norm o...
Given two normal operators A and B on a Hilbert space it is known that, in general, AB is not normal...
AbstractA real finite-dimensional space with indefinite scalar product having v− negative squares an...
AbstractIn this paper two complex square matrices A and B are said to be simultaneously normalizable...
AbstractA finite-dimensional complex space with indefinite scalar product [.,.] having v− = 2 negati...
Let T be a bounded linear operator on a complex Hilbert space. T is said to be n-normal if T^{*}T^{n...
AbstractIt is shown that the real algebra generated by a pair A,B of n × n (complex) matrices consis...
Normality of bounded and unbounded adjointable operators is discussed. If T is an adjointable operat...
First published in Proceedings of the American Mathematical Society in volume 148 issue 5 in the yea...
AbstractThis paper is a continuation of the study by Foias, Jung, Ko, and Pearcy (2007) [4] and Foia...
AbstractLet T=[Tij], i,j=1,2,…,m, be a block operator whose entries Tij are commuting normal operato...
AbstractA full description is given of n-selfadjoint normal operators in Krein spaces of finite defe...
AbstractIn this work we characterize normal invertible operators via inequalities with unitarily inv...
Let $S$ and $T$ be (bounded) scalar operators on a Banach space $\scr X$ and let $C(T,S)$ be the map...
AbstractAs a common generalization of normal operators and strictly dissipative operators, the class...
AbstractLet A be a bounded linear operator on a Hilbert space H; denote |A| = (A∗A)12 and the norm o...
Given two normal operators A and B on a Hilbert space it is known that, in general, AB is not normal...
AbstractA real finite-dimensional space with indefinite scalar product having v− negative squares an...
AbstractIn this paper two complex square matrices A and B are said to be simultaneously normalizable...
AbstractA finite-dimensional complex space with indefinite scalar product [.,.] having v− = 2 negati...
Let T be a bounded linear operator on a complex Hilbert space. T is said to be n-normal if T^{*}T^{n...
AbstractIt is shown that the real algebra generated by a pair A,B of n × n (complex) matrices consis...
Normality of bounded and unbounded adjointable operators is discussed. If T is an adjointable operat...
First published in Proceedings of the American Mathematical Society in volume 148 issue 5 in the yea...
AbstractThis paper is a continuation of the study by Foias, Jung, Ko, and Pearcy (2007) [4] and Foia...
AbstractLet T=[Tij], i,j=1,2,…,m, be a block operator whose entries Tij are commuting normal operato...
AbstractA full description is given of n-selfadjoint normal operators in Krein spaces of finite defe...
AbstractIn this work we characterize normal invertible operators via inequalities with unitarily inv...
Let $S$ and $T$ be (bounded) scalar operators on a Banach space $\scr X$ and let $C(T,S)$ be the map...
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