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   Derivations on ρ-banach Algebras

   Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Amir Khosravi

   Let A be a ρ-Banach algebra with radical R and let D be a derivation on A. We generalize Johnson's theorem, Sinclair's theorem and Thomas's theorem (Singer-Wermer's conjecture) to ρ-Banach algebras. If K = {x ∈ R: for every n...

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