On Mirror Symmetry for Manifolds of Exceptional Holonomy

B. S. Acharya

We consider Type II string theories on ${\mathbf{T}}^{\mathbf{n}}/{{\mathbf{Z}}_2}^m$ Joyce orbifolds. This class contains orbifolds which can be desingularised to give manifolds of $G_2$ $(\mathbf{n}$$=$…