“…Ya. Helemskii [34,36] and have been studied by many authors (see, e.g., [34,35,46,78,80,81,37,82,53,69,83,87,88,89,91,8,63,102,64,65,67,9,76]). The original motivation to study such algebras was the vanishing of their cohomology groups 14 , H n (A, X), with coefficients in arbitrary topological A-bimodules X for all n ≥ 3 (see, e.g., [42,Theorem 2.4.21]).…”