The Fuglede-Putnam theorem and Putnam's inequality for quasi-class (A, k) operators.
Gao, Fugen, Fang, Xiaochun (2011)
Annals of Functional Analysis (AFA) [electronic only]
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Displaying similar documents to “Some properties of paranormal and hyponormal operators.”
The Fuglede-Putnam theorem and Putnam's inequality for quasi-class (A, k) operators.
About the bivariate operators of Kantorovich type.
Pop, O.T., Fărcaş, M.D. (2009)
Acta Mathematica Universitatis Comenianae. New Series
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On a general class of linear and positive operators.
Pop, Ovidiu T., Fărcaş, Mircea D., Bărbosu, Dan (2011)
Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
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On a reverse of Ando-Hiai inequality.
Seo, Yuki (2010)
Banach Journal of Mathematical Analysis [electronic only]
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Aluthge transforms of -hyponormal operators.
Cheng, Junxiang, Yuan, Jiangtao (2011)
Annals of Functional Analysis (AFA) [electronic only]
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Matrix order in Bohr inequality for operators.
Fujii, Masatoshi, Zuo, Hongliang (2010)
Banach Journal of Mathematical Analysis [electronic only]
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A survey of some recent inequalities for the norm and numerical radius of operators in Hilbert spaces.
Dragomir, Sever S. (2007)
Banach Journal of Mathematical Analysis [electronic only]
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Some properties of the Schurer type operators.
Căbulea, Lucia (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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About some bivariate operators of Stancu type.
Farcaş, Mircea D. (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
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Distances between composition operators.
Valentin Matache (2007)
Extracta Mathematicae
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Composition operators C induced by a selfmap φ of some set S are operators acting on a space consisting of functions on S by composition to the right with φ, that is Cf = f º φ. In this paper, we consider the Hilbert Hardy space H on the open unit disk and find exact formulas for distances ||C - C|| between composition operators. The selfmaps φ and ψ involved in those formulas are constant, inner, or analytic selfmaps of the unit disk fixing the origin.
The carrier graph topology.
Kulkarni, S.H., Ramesh, G. (2011)
Banach Journal of Mathematical Analysis [electronic only]
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Generalized derivations and -algebras: comments and some open problems.
Mecheri, Salah (2009)
International Journal of Open Problems in Computer Science and Mathematics. IJOPCM
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