Critical points in Lovelock Black Holes
  We review some of the results obtained by introducing a thermodynamic pressure via the cosmological constant in a class of higher curvature theories known as Lovelock gravity. In particular, we focus on a specific relation between the higher-order Lovelock couplings that introduces a peculiar isolated critical point for hyperbolic black holes characterized by non-standard critical exponents. 
Antonia M. Frassino, Robert B. Mann, Fil Simovic
hep-th gr-qc