Dynamical Triangulations for 2D Pure Gravity and Topological Recursion

We show that, in two-dimensional Euclidean quantum gravity without matter fields, the Schwinger-Dyson equations derived within the Hamiltonian framework of non-critical string field theory can be reformulated in terms of the Chekhov-Eynard-Orantin topological recursion, and we explicitly compute the associated low-order amplitudes. In particular, we establish this reformulation for two discrete models – the basic type and the strip type – as well as for the continuum limit of dynamical triangulations.