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davfox121 (davfox) 于 (Thu Feb 22 16:27:33 2007) 提到:
Consider a random walk (Xn) on the integers where, from an even number it
jumps to the left with probability 1/3 and to the right with probability 2/3
, while from an odd number it does the opposite; jumps to the left with
probability 2/3 and to the right with probability 1/3.
Prove that this random walk is recurrent.
Anyone know how to calculate P2n(0,0) ?
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