  We use localization techniques to study duality in N = 2 supersymmetric gauge
theories in three dimensions. Specifically, we consider a duality due to
Aharony involving unitary and symplectic gauge groups, which is similar to
Seiberg duality in four dimensions, as well as related dualities involving
Chern-Simons terms. These theories have the possibility of non-trivial
anomalous dimensions for the chiral multiplets and were previously difficult to
examine. We use a matrix model to compute the partition functions on both sides
of the duality, deformed by real mass and FI terms, and find that they agree.
The results provide strong evidence for the validity of the proposed dualities.
We also comment on a recent proposal for recovering the exact IR conformal
dimensions in such theories using localization.
