  In this succinct note, it is showed that a partition function of equivalent
classes of hyperbolic surfaces can be connected to an Ising model located on
the boundary of the Poincare disc, as hinted by Poincare's Uniformization
theorem and Patterson-Sullivan's Theorem.
  Keywords: Hyperbolic spaces, Schottky groups, Ising models, locations of
Lee-Yang Zeros, non-trivial zeros of Riemann zeta function, phase transition,
and quantum chaos.
