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عنوان
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Jordan and Lie derivations of φ-Johnson amenable Banach algebras
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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φ-Johnson amenable; character amenable; amenable; Banach algebra; Jordan derivation; Lie derivation.
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چکیده
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Let U be a φ-Johnson amenable Banach algebra in which φ is a nonzero multiplicative linear functional on U. Suppose that X is a Banach U-bimodule such that a.x = φ(a)x for all a ∈ U, x ∈ X or x.a = φ(a)x for all a ∈ U, x ∈ X. We show that every continuous Jordan derivation from U to X is a derivation, and every continuous Lie derivation from U to X decomposed into the sum of a continuous derivation and a continuous centervalued trace. Then we apply our results for character amenable Banach algebras and amenable Banach algebras. We also provide some results about φ-Johnson amenability, especially we give some conditions equivalent to φ-Johnson amenability
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پژوهشگران
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هوگر قهرمانی (نفر اول)، پروین زمانی دادانه (نفر دوم)
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