In a Markov chain, show that a state i is persistent if and only if the mean number of visits to the state i is infinite given the chain started in state i.(adsbygoogle = window.adsbygoogle || []).push({});

I thought about looking at the mean recurrence time, but that's all I have so far.

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# State in a Markov chain is persistent if there are an infinite number of visits to it

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