2024 : 11 : 21
Hoger Ghahramani

Hoger Ghahramani

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 26032003000
HIndex:
Faculty: Faculty of Science
Address: Department of Mathematics, University of Kurdistan, Sanandaj, Iran. P. O. Bix. 416
Phone:

Research

Title
On Centralizers of Banach Algebras
Type
JournalPaper
Keywords
Centralizer; Jordan centralizer; Bilinear map; Linear map.
Year
2015
Journal Bulletin of the Malaysian Mathematical Sciences Society
DOI
Researchers Hoger Ghahramani

Abstract

Let A be a unital Banach algebra and M be a unital Banach A-bimodule. The main results characterize a continuous linear map ϕ : A → M that satisfies aϕ(a^−1) = ϕ(1) or aϕ(a^−1) + ϕ(a^−1)a = 2ϕ(1) for all a in principal component of invertible elements of A. The proof is based on the consideration of a continuous bilinear map satisfying a related condition