Title of article :
Weak amenability of semigroup algebras modulo an ideal
Author/Authors :
Mehrabi, A Central Tehran Branch - Islamic Azad University , Rahimi, H Central Tehran Branch - Islamic Azad University
Abstract :
The main purpose of this paper is to investigate weak amenability of semigroup algebras. We relate this to a new notion of weak amenability modulo an ideal of Banach algebras. As an important result, we show that l1(S) is weakly amenable modulo Iσ , where Iσ is the corresponding ideal of the group congruence σ.
Keywords :
Weak amenability , weak amenability mod-ulo an ideal , semigroup algebra , group congruence
Journal title :
Astroparticle Physics
