2025 : 9 : 29
Amir Sahami

Amir Sahami

Academic rank: Associate Professor
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Education: PhD.
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HIndex: 0/00
Faculty: Basic Science
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Research

Title
JOHNSON PSEUDO-CONTRACTIBILITY AND PSEUDO-AMENABILITY OF θ-LAU PRODUCT
Type
JournalPaper
Keywords
θ-Lau product, Johnson pseudo-contractibility, pseudo-amenability.
Year
2020
Journal KRAGUJEVAC JOURNAL OF MATHEMATICS
DOI
Researchers mahdi askari sayah ، Abdolrasoul Pourabbas ، Amir Sahami

Abstract

Given Banach algebras A and B and θ ∈ ∆(B). We shall study the Johnson pseudo-contractibility and pseudo-amenability of the θ-Lau product A×θ B. We show that if A ×θ B is Johnson pseudo-contractible, then both A and B are Johnson pseudo-contractible and A has a bounded approximate identity. In some particular cases, a complete characterization of Johnson pseudo-contractibility of A ×θ B is given. Also, we show that pseudo-amenability of A ×θ B implies the approximate amenability of A and pseudo-amenability of B.