  We study the effect of anisotropy (strain) on dynamical gap generation in
graphene. We work with a low energy effective theory obtained from a
tight-binding Hamiltonian expanded around the Dirac points in momentum space.
We use a non-perturbative Schwinger-Dyson approach and calculate a coupled set
of five momentum dependent dressing functions. Our results show that the
critical coupling depends only weakly on the anisotropy parameter, and
increases with greater anisotropy.
