2026/2/4
Amir Sahami

Amir Sahami

Academic rank: Associate Professor
ORCID:
Education: PhD.
H-Index: 0
Faculty: Basic Science
ScholarId:
E-mail: a.sahami [at] ilam.ac.ir
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Research

Title
Johnson pseudo-contractibility of certain Banach algebras and their nilpotent ideals
Type
Presentation
Keywords
Johnson pseudo-contractibility, Semigroup algebras, Segal algebras, Fourier algebras
Year
2019
Researchers Mehdi Askari-Sayah ، Abdulrasoul Pourabbas ، Amir Sahami

Abstract

In this paper, we study the notion of Johnson pseudo-contractibility for certain Banach algebras. For a bicyclic semigroup S, we show that `1(S) is not Johnson pseudo-contractible. We give a necessary and sucient condition for a Fourier algebra to be Johnson pseudo-contractible. Also for a SIN-group G, we show that Johnson pseudo-contractibility of S1(G) is equivalent with amenability of G.