We consider the monoidal subcategory of finite dimensional representations of $U_q(\mathfrak{ gl}(1|1))$ generated by the vector representation, and we provide a diagram calculus for the intertwining operators, which allows to compute explicitly the canonical basis. We construct then a categorification of these representations and of the action of both $U_q(\mathfrak{ gl}(1|1))$ and the intertwining operators using subquotient categories of the BGG category $\mathcal{ O}(\mathfrak{ gl}_n)$.
Categories: math.RT math.QA