The weak p-adic digit distribution conjecture for algebraic irrational numbers

From papers

Let αQQ\alpha\in\overline{\mathbf{Q}}\setminus\mathbf{Q}, and let SS be the set of rational primes that are totally split in Q(α)\mathbf{Q}(\alpha). Let rr and ss be integers, and let u,vu,v be real numbers with 0u<v10\leq u<v\leq 1. For pSp\in S and a field embedding σ ⁣:Q(α)Qp\sigma\colon\mathbf{Q}(\alpha)\to\mathbf{Q}_p, write αn(p,σ)\alpha_n(p,\sigma) for the nnth pp-adic digit of α\alpha. Weak p-adic digit distribution conjecture. For all but finitely many primes pSp\in S, with the finite exceptional set depending on α\alpha, rr, ss, uu, and vv, the digit αn(p,σ)\alpha_n(p,\sigma) lies in the interval (u(p1),v(p1))(u(p-1),v(p-1)) for infinitely many integers n0n\geq 0 in the arithmetic progression n=rm+sn=rm+s. This is presented as a weakened form of normality for algebraic pp-adic numbers; the corresponding normality question for algebraic numbers of degree at least two is described as open, and no resolution of this weaker conjecture is given.

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Primary source

Cameron Franc, Nathan Heisz and Hannah Nardone, “Density formulas for p-adically bounded primes for hypergeometric series with rational and quadratic irrational parameters”, arXiv:2412.02523 (2024).

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