Markov chain - Wikipedia
https://en.wikipedia.org/wiki/Markov_chainTwo states communicate with each other if both are reachable from one another by a sequence of transitions that have positive probability. This is an equivalence relation which yields a set of communicating classes. A class is closed if the probability of leaving the class is zero. A Markov chain is irreducible if there is one communicating class, the state space. A state i has period if is the greatest common divisorof the number of transitions by which i can b…
Markov Chains and Expected Value - ryanhmckenna.com
www.ryanhmckenna.com › 2015 › 04Apr 03, 2015 · Using the Markov Chain Markov chains are not designed to handle problems of infinite size, so I can't use it to find the nice elegant solution that I found in the previous example, but in finite state spaces, we can always find the expected number of steps required to reach an absorbing state. Let's solve the previous problem using \( n = 8 \).