  In (2+1)-dimensional pure gravity with cosmological constant, the dynamics of
double torus universe with pinching parameter is investigated. Each mode of
affine stretching deformation is illustrated in the context of horizontal
foliation along the holomorphic quadratic differential. The formulation of the
Einstein Hilbert action for the parameters of the affine stretching is
developed. Then the dynamics along one holomorphic quadratic differential will
be solved concretely.
