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On absorption probabilities for a random walk between two different barriers. (English) Zbl 0765.60071
For the simple random walk on $$\{0,1,\dots,N\}$$ having only steps $$\pm 1$$ and 0, an absorbing state at $$N$$ and a partially reflecting boundary at 0 formulas for the absorption probabilities and the first two moments of the absorption time are given.

##### MSC:
 60G50 Sums of independent random variables; random walks
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##### References:
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