Bounded Approximate Identities in Ternary Banach Algebras
M. Eshaghi Gordji, Ali Jabbari, Gwang Hui Kim
Abstract
Open-access reader
M. Eshaghi Gordji, Ali Jabbari, Gwang Hui Kim
Abstract
Open-access reader
Let A be a ternary Banach algebra. We prove that if A has a left‐bounded approximating set, then A has a left‐bounded approximate identity. Moreover, we show that if A has bounded left and right approximate identities, then A has a bounded approximate identity. Hence, we prove Altman’s Theorem and Dixon’s Theorem for ternary Banach algebras.
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Let A be a ternary Banach algebra. We prove that if A has a left‐bounded approximating set, then A has a left‐bounded approximate identity. Moreover, we show that if A has bounded left and right approximate identities, then A has a bounded approximate identity. Hence, we prove Altman’s Theorem and Dixon’s Theorem for ternary Banach algebras.
Key concepts: Bounded function, Mathematics, Bounded inverse theorem, Banach space, Banach algebra, Ternary operation, Identity (music), Pure mathematics