A new class of composition operators

A new class of composition operators Pϕ:H2(T)→H2(T), with ϕ:T→D¯ is introduced. Sufficient conditions on ϕ for Pϕ to be bounded and Hilbert-Schmidt are obtained. Properties of Pϕ with ϕ(eit)=aeit+be−it for different values of the parameters a and b have been investigated. This paper concludes with a...

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Main Authors: S. Pattanayak, C. K. Mohapatra, A. K. Mishra
Format: Article
Language:English
Published: Wiley 1987-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171287000553
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author S. Pattanayak
C. K. Mohapatra
A. K. Mishra
author_facet S. Pattanayak
C. K. Mohapatra
A. K. Mishra
author_sort S. Pattanayak
collection DOAJ
description A new class of composition operators Pϕ:H2(T)→H2(T), with ϕ:T→D¯ is introduced. Sufficient conditions on ϕ for Pϕ to be bounded and Hilbert-Schmidt are obtained. Properties of Pϕ with ϕ(eit)=aeit+be−it for different values of the parameters a and b have been investigated. This paper concludes with a discussion on the compactness of Pϕ.
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institution Kabale University
issn 0161-1712
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language English
publishDate 1987-01-01
publisher Wiley
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series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-b1e0c045b304443f836572d7309b2d622025-02-03T01:11:23ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251987-01-0110347348210.1155/S0161171287000553A new class of composition operatorsS. Pattanayak0C. K. Mohapatra1A. K. Mishra2School of Mathematical Sciences, Sambalpur University, Jyoti Vihar 768019, IndiaSchool of Mathematical Sciences, Sambalpur University, Jyoti Vihar 768019, IndiaSchool of Mathematical Sciences, Sambalpur University, Jyoti Vihar 768019, IndiaA new class of composition operators Pϕ:H2(T)→H2(T), with ϕ:T→D¯ is introduced. Sufficient conditions on ϕ for Pϕ to be bounded and Hilbert-Schmidt are obtained. Properties of Pϕ with ϕ(eit)=aeit+be−it for different values of the parameters a and b have been investigated. This paper concludes with a discussion on the compactness of Pϕ.http://dx.doi.org/10.1155/S0161171287000553Hp spacecomposition operatorHilbert Schmidt operatorcompact operator.
spellingShingle S. Pattanayak
C. K. Mohapatra
A. K. Mishra
A new class of composition operators
International Journal of Mathematics and Mathematical Sciences
Hp space
composition operator
Hilbert Schmidt operator
compact operator.
title A new class of composition operators
title_full A new class of composition operators
title_fullStr A new class of composition operators
title_full_unstemmed A new class of composition operators
title_short A new class of composition operators
title_sort new class of composition operators
topic Hp space
composition operator
Hilbert Schmidt operator
compact operator.
url http://dx.doi.org/10.1155/S0161171287000553
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