Results 11 to 20 of about 2,809,960 (74)
Some inequalities for unitarily invariant norms of matrices [PDF]
, 2011 This article aims to discuss inequalities involving unitarily invariant norms. We obtain a refinement of the inequality shown by Zhan. Meanwhile, we give an improvement of the inequality presented by Bhatia and Kittaneh for the Hilbert-Schmidt norm.
Youyi Jiang, Limin Zou, Shaoheng Wang
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A note on lp norms of weighted mean matrices [PDF]
, 2012 We present some results concerning the lp norms of weighted mean matrices. These results can be regarded as analogues to a result of Bennett concerning weighted Carleman's inequalities. 2000 Mathematics Subject Classification: Primary 47A30.Published
Peng Gao, Gao, Peng
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On Quasi-invertibility and Quasi-similarity of Operators in Hilbert Space. [PDF]
, 2018 In this paper we show that if two operators A and B are quasi-invertible then AB and BA are also quasi-similar. We also show that if two operators and are isometric is consistent in invertibility under further hypothesis.
S.W., Luketero +2 more
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SOME RESULTS ON OPERATORS CONSISTENT IN INVERTIBILITY [PDF]
, 2018 In this paper, we investigate the conditions under which some classes of operators in a complex Hilbert space H are said to be consistent in invertibility.
Wabuya, Kikete, Stephen, Luketero
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On Quasi-Similarity and Putnam- Fuglede Property of Operators In Hilbert Spaces [PDF]
, 2014 The problem of finding conditions under which two given operators say A and B have equal spectra has been considered by several authors. In this paper we show that quasi-similar operators and which satisfy the Putnam- Fuglede property have equal ...
LUKETERO, S.W. +2 more
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On Quasi-similarity of a product of Quasi-similar operators in Hilbert Spaces. [PDF]
, 2015 In this paper we investigate the conditions under which two operators A and B are quasi-similar implies AB and BA are also quasi-similar. It is herein shown that if A and B satisfy the Putnam-Fuglede property and are quasi-similar with the intertwining ...
S.W., Luketero +3 more
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Writing in Secondary Academic Partners [PDF]
, 2023 Writing in Secondary (WiS) Academic Partners is a partnership between the New South Wales Department of Education and the Centre for Educational Research, School of Education, Western Sydney University (WSU).
Jacobs, Rachael (R18862) +5 more
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ON EQUALITY OF SPECTRA AND ESSENTIAL SPECRA OF OPERATORS IN HILBERT SPACES [PDF]
, 2015 It is a well known fact in operator theory that for any operator A, the essential spectrum of A is contained in the spectrum of A. The task of finding conditions under which the two are equal has been the subject matter in a number of several research ...
LUKETERO, S.W. +2 more
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Generalized Derivations and Norm Equality in Normed Ideals [PDF]
, 2011 2000 Mathematics Subject Classification: 47A10, 47A12, 47A30, 47B10, 47B20, 47B37, 47B47, 47D50.We compare the norm of a generalized derivation on a Hilbert space with the norm of its restrictions to Schatten norm ...
Barraa, Mohamed
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On Quasi-Normality of Two-Sided Multiplication [PDF]
, 2009 2000 Mathematics Subject Classification: 47B47, 47B10, 47A30.In this note, we characterize quasi-normality of two-sided multiplication, restricted to a norm ideal and we extend this result, to an important class which contains all quasi-normal operators.
Amouch, M.
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