Phase merging algorithms

The general scheme of phase merging which is described in Section 1.2, is now realized as phase merging algorithms (PMA) which can be applied to stochastic systems described by Markov and semi-Markov processes. We consider only two different PMA which are used in phase averaging algorithms and in the diffusion approximation of stochastic evolutions. In Chapter 4 we consider the phase merging with stoppings (absorption) and in reducible phase space.