Journals / Hacettepe Journal of Mathematics and Statistics / 2026 / Volume: 43 Issue: 5

On operators of Ap and A∗ p class

R. Eskandari(DEPARTMENT OF MATHEMATICS, PAYAME NOOR UNIVERSITY)
F. Mirzapour(DEPARTMENT OF MATHEMATICS, FACULTY OF SCIENCES, UNIVERSITY OF ZANJAN)
H. Rahmatan(DEPARTMENT OF MATHEMATICS, PAYAME NOOR UNIVERSITY)
Pages
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Publication Date
2014-10-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

We use some known operator inequalities and we show that if T ∈ B(H ) is an Ap−class or an A ∗ p−class operator, then r(T) =k T k . 

📌 3 Key Takeaways

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Objective & Hypothesis:In this paper we study the properties of bounded linear operators namely Ap−class and A ∗ p−class operators that satisfy T ∗T ≤ (T ∗pT p ) 1 p and T T ∗ ≤ (T ∗pT p ) 1 p respectively.
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Key Findings & Data:In this paper we study the properties of bounded linear operators namely Ap−class and A ∗ p−class operators that satisfy T ∗T ≤ (T ∗pT p ) 1 p and T T ∗ ≤ (T ∗pT p ) 1 p respectively.
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Conclusion & Impact:We use some known operator inequalities and we show that if T ∈ B(H ) is an Ap−class or an A ∗ p−class operator, then r(T) =k T k . 
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:A−class operator · operator inequality · Spectral radius

Abstract

In this paper we study the properties of bounded linear operators namely Ap−class and A ∗ p−class operators that satisfy T ∗T ≤ (T ∗pT p ) 1 p and T T ∗ ≤ (T ∗pT p ) 1 p respectively. We use some known operator inequalities and we show that if T ∈ B(H ) is an Ap−class or an A ∗ p−class operator, then r(T) =k T k . 

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Cite This Article

Eskandari, R., Mirzapour, F., Rahmatan, H. (2014). On operators of Ap and A∗ p class. Hacettepe Journal of Mathematics and Statistics, Volume: 43 Issue: 5. https://ajindex.com/articles/1403365

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