  In this article, we discuss a (2+1)-dimensional topological quantum field
theory, for short TQFT, with a Verlinde basis. As a conclusion of this general
theory, we have a Dehn surgery formula. We show that Turaev-Viro-Ocneanu TQFT
has a Verlinde basis. Several applications of this theorem are exposed. Based
on Izumi's data of subfactors, we list several computations of
Turaev-Viro-Ocneanu invariants for some 3-manifolds.
