More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces
We study some properties of (𝛼,𝛽)-normal operators and we present various inequalities between the operator norm and the numerical radius of (𝛼,𝛽)-normal operators on Banach algebra ℬ(ℋ) of all bounded linear operators 𝑇∶ℋ→ℋ, where ℋ is Hilbert space.
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2012/204031 |
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| _version_ | 1832549888736362496 |
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| author | Rasoul Eskandari Farzollah Mirzapour Ali Morassaei |
| author_facet | Rasoul Eskandari Farzollah Mirzapour Ali Morassaei |
| author_sort | Rasoul Eskandari |
| collection | DOAJ |
| description | We study some properties of (𝛼,𝛽)-normal operators and we present various inequalities between the operator norm and the numerical radius of (𝛼,𝛽)-normal operators on Banach algebra ℬ(ℋ) of all bounded linear operators 𝑇∶ℋ→ℋ, where ℋ is Hilbert space. |
| format | Article |
| id | doaj-art-d11ea0940cf14ebbb2340dfba0545d45 |
| institution | Kabale University |
| issn | 1085-3375 1687-0409 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Abstract and Applied Analysis |
| spelling | doaj-art-d11ea0940cf14ebbb2340dfba0545d452025-02-03T06:08:21ZengWileyAbstract and Applied Analysis1085-33751687-04092012-01-01201210.1155/2012/204031204031More on (𝜶,𝜷)-Normal Operators in Hilbert SpacesRasoul Eskandari0Farzollah Mirzapour1Ali Morassaei2Department of Mathematics, Faculty of Sciences, University of Zanjan, Zanjan 45195-313, IranDepartment of Mathematics, Faculty of Sciences, University of Zanjan, Zanjan 45195-313, IranDepartment of Mathematics, Faculty of Sciences, University of Zanjan, Zanjan 45195-313, IranWe study some properties of (𝛼,𝛽)-normal operators and we present various inequalities between the operator norm and the numerical radius of (𝛼,𝛽)-normal operators on Banach algebra ℬ(ℋ) of all bounded linear operators 𝑇∶ℋ→ℋ, where ℋ is Hilbert space.http://dx.doi.org/10.1155/2012/204031 |
| spellingShingle | Rasoul Eskandari Farzollah Mirzapour Ali Morassaei More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces Abstract and Applied Analysis |
| title | More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces |
| title_full | More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces |
| title_fullStr | More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces |
| title_full_unstemmed | More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces |
| title_short | More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces |
| title_sort | more on 𝜶 𝜷 normal operators in hilbert spaces |
| url | http://dx.doi.org/10.1155/2012/204031 |
| work_keys_str_mv | AT rasouleskandari moreonαβnormaloperatorsinhilbertspaces AT farzollahmirzapour moreonαβnormaloperatorsinhilbertspaces AT alimorassaei moreonαβnormaloperatorsinhilbertspaces |