عنوان	Approximate biflatness and Johnson pseudo-contractibility of some Banach algebras.
نوع پژوهش	مقاله چاپ‌شده در مجله
کلیدواژه‌ها	approximate biflatness; Johnson pseudo-contractibility; Lipschitz al-gebra; triangular Banach algebra.
چکیده	We study the structure of Lipschitz algebras under the notions of approximate biflatness and Johnson pseudo-contractibility. We show that for a compact metric space X, the Lipschitz algebras Lip_alfa(X) and lip_alfa(X) are ap- proximately biflat if and only if X is finite, provided that 0 < alfa < 1. We give a necessary and sufficient condition that a vector-valued Lipschitz algebras is Johnson pseudo-contractible. We also show that some triangular Banach algebras are not approximately biflat.
پژوهشگران	امیر سهامی (نفر اول)، محمد رضا امیدی (نفر دوم)، اقبال قادری (نفر سوم)، حمزه زنگنه (نفر چهارم)