A note on scaling limits for truncated birth-and-death processes with   interaction
  In this note we consider a Markov chain formed by a finite system of interacting birth-and-death processes on a finite state space. We study an asymptotic behaviour of the Markov chain as its state space becomes large. In particular, we show that the appropriately scaled Markov chain converges to a diffusion process, and derive conditions for existence of the stationary distribution of the limit diffusion process in special cases. 
Vadim Shcherbakov and Anatoly Yambartsev
math.PR