Exact Power Estimates for Countable Markov Chains

M.V. Menshikov, S.Yu. Popov

1995, v.1, №1, 57-78


We develop new methods for studying non-exponential asymptotics of the stationary probabilities and the convergence rates for countable Markov chains. For some well-known cases like zero drift random walks on the quadrant we get coinciding lower and upper bounds.

Keywords: Markov chains classification,stationary probabilities,Lyapunov functions,martingales,convergence rate


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