Character amenability of real Banach algebras
عنوان مقاله: Character amenability of real Banach algebras
شناسه ملی مقاله: JR_IJNAA-11-2_021
منتشر شده در در سال 1399
شناسه ملی مقاله: JR_IJNAA-11-2_021
منتشر شده در در سال 1399
مشخصات نویسندگان مقاله:
- - - Arak University
- - - Arak University
خلاصه مقاله:
- - - Arak University
- - - Arak University
Let (A,\| \cdot \|) be a real Banach algebra. In this paper we first introduce left and right \varphi-amenability of A and discuss the relation between left (right, respectively) \varphi-menability and \overline{\varphi}-amenability of A for \varphi\in\triangle(A)\cup\{۰\} where \overline{\varphi}\in\triangle(A) is the conjugate of \varphi. Next we show that A is left (right, respectively) \varphi-amenable if and only if A_{\mathbb{C}} is left (right, respectively) \varphi_{\mathbb{C}}-amenable, where A_{\mathbb{C}} is a suitable complexification of A and \varphi_{\mathbb{C}}\in\triangle(A_{\mathbb{C}}) is the induced character by \varphi on A_{\mathbb{C}}. In continue, we give a hereditary property for ۰-amenability of A. We also study relations between the injectivity of Banach left A-modules and right \varphi-amenability of A. Finally, we characterize the left character amenability of certain real Banach algebras.
کلمات کلیدی: Banach algebra, Character amenable, Complexification, Banach left module, injectivity
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1561594/