A categorification of the square root of -1
We give a graphical calculus for a monoidal DG category ℐ whose Grothendieck group is isomorphic to the ring ℤ[√(-1)]. We construct a categorical action of ℐ which lifts the action of ℤ[√(-1)] on ℤ².
A functor-valued invariant of tangles.
A generalized Picard group for prime rings
A noncommutative generalization of Auslander's last theorem.
A note on generalized Gorenstein dimension.
A remark about the Connes fusion tensor product.
An alternate criterion of colocalized-localized modules.
The aim of this note is to express a module which is localized as well as colocalized in terms of an object of an intersecting subcategory related to static modules.