Truncation approximation of the limit probabilities for denumerable semi-Markov processes
Richard L. Tweedie · Journal of Applied Probability · 1975
It is shown that methods used by the author to approximate limit probabilities for Markov processes from their Q-matrices extend to semi-Markov processes. The limit probabilities for semi-Markov processes can be approximated using only truncations of the embedded Markov chain transition matrix and the vector of mean holding times.