2025 : 4 : 11
Mohammad Reza Omidi

Mohammad Reza Omidi

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Education: PhD.
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Phone: 09183361576

Research

Title
Approximate biflatness and Johnson pseudo-contractibility of some Banach algebras
Type
JournalPaper
Keywords
approximate biflatness; Johnson pseudo-contractibility; Lipschitz al- gebra; triangular Banach algebra
Year
2020
Journal COMMENTATIONES MATHEMATICAE UNIVERSITATIS CAROLINAE
DOI
Researchers Amir Sahami ، Mohammad Reza Omidi ، Eghbal Ghaderi ، Hamzeh Zangeneh

Abstract

We study the structure of Lipschitz algebras under the notions of approximate biflatness and Johnson pseudo-contractibility. We show that for a compact metric space X, the Lipschitz algebras Lip_{alpha}(X) and lip_{alpha}(X) are approximately biflat if and only if X is finite, provided that 0 < alpha < 1. We give a necessary and sufficient condition that a vector-valued Lipschitz algebras is Johnson pseudo-contractible. We also show that some triangular Banach alge- bras are not approximately biflat.