Exact closed-form survival and last-passage probabilities for biased 1D random walks at arbitrary step number, revealing a critical bias |Bc| = 1/sqrt(3) for monotone last-passage tails.
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Closed-form survival probabilities for biased random walks at arbitrary step number
Exact closed-form survival and last-passage probabilities for biased 1D random walks at arbitrary step number, revealing a critical bias |Bc| = 1/sqrt(3) for monotone last-passage tails.