Poisson approximation 4 Poisson distribution 4 Stochastic population dynamics 4 Approximation theory 2 Computer simulation 2 Diffusion 2 Diffusion approximation 2 Diffusion approximations 2 Dynamics 2 Feller process 2 Langevin 2 Langevin approach 2 Markov processes 2 Monte Carlo methods 2 Ordinary differential equations 2 Poisson approximations 2 SDE 2 Statistical mechanics 2 Theorem proving 2