Abstract:
Let $\zeta_t=(\xi_t,\eta_t)$ ($t=1,2,\dots$) be a denumerable homogeneous Markov chain. If $\eta_1,\dots,\eta_n$ are fixed, $\xi_t$ ($t=1,2,\dots,n$) is a conditional Markov chain. In this paper, ergodicity properties of such chains are proved.