Summary
We introduce a simple variation of Doeblin's condition, Condition D*, that assures the uniform ergodicity of a Markov chain. It is also shown that for non-homogeneous chains our conditions are equivalent to Dobrushin's weak ergodic coefficient.
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Dorea, C., Pereira, A. A note on a variation of Doeblin's condition for uniform ergodicity of Markov chains. Acta Math Hung 110, 287–292 (2006). https://doi.org/10.1007/s10474-006-0023-y
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DOI: https://doi.org/10.1007/s10474-006-0023-y