April 28, 2024
Mohammad Reza Omidi

Mohammad Reza Omidi

Academic rank:
Address: -
Education: Ph.D in Mathematics
Phone: 09183361576
Faculty:

Research

Title
Approximate biflatness and Johnson pseudo-contractibility of some Banach algebras
Type Article
Keywords
approximate biflatness; Johnson pseudo-contractibility; Lipschitz al- gebra; triangular Banach algebra
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.