Criteria of Le page Type in Involutive Banach Algebras

Authors : A. El KINANI, M. OUDADESS

Pages : 315-321

View : 13 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The Le Page inequality in Banach algebras is \parallel xy \parallel\leqa\parallel yx\parallel. We consider inequalities where a linear involution appears and has consequences on the involution itself and commutativity results.1
Keywords : Banach algebra, Commutativity, Cstar algebra, antilinear map, Spectral radius, Numerical radius