ABSTRACT

Notation is as in Section 1.3. We consider the noncommutative site Wand we use Q to indicate a presheaf on W, :F to indicate a sheaf in the sense of Definition 1.3.13. By an affine cover we mean any finite set {7i, i E I} of left Ore sets as in Section 1.3. such that ni,C(7i) = ,C(~+) i.e. Ai~T, = ~+.