Mossel-Peres Multivariable Bernoulli Factory Claim
the published multivariable claim fails; the single-variable theorem stands
probability-statistics / Probability
Mossel and Peres showed that a single-variable function admits a finite-automata Bernoulli factory exactly when it is rational, and their Theorem 2.9 claimed the same extension to multivariable functions. The multivariable claim is false, refuted by an explicit counterexample.
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the published multivariable claim fails; the single-variable theorem stands
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Mossel and Peres showed that a single-variable function admits a finite-automata Bernoulli factory exactly when it is rational, and their Theorem 2.9 claimed the same extension to multivariable functions. The multivariable claim is false, refuted by an explicit counterexample.
the published multivariable claim fails; the single-variable theorem stands
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