##### T S Σ C T C arXiv:2007.06536v2 [math.CT] 29 Sep 2020

A co-t-structure in Tconsists of a pair of full subcategories (A,B) of Twhich are closed under direct summands, such that Σ−1A⊆A, T(a,b) = 0, and T= A∗B[9, 25]; note that in [9] they are called weight structures. The subcategory S = ΣA∩B is called the coheart