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Conjectural prime-local denominator bounds at Gompertz factorial endpoints

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EulerMascheroni.Arithmetic.gompertz_prime_local_bounds_conjecture

by shivm · Sep 11, 2026 · Mathlib 0df444a (Lean v4.33.1)

algebraic-integerseuler-mascheronilocal-global

Assume that the real Borel-summed Euler–Gompertz constant δ\deltaδ is algebraic. Conjecturally there is C≥1C\ge1C≥1 such that for every nnn there is a positive integer D≤Cn+1D\le C^{n+1}D≤Cn+1 for which Dqn(δ)Dq_n(\delta)Dqn​(δ) is integral at every finite prime: for each prime ppp, some integer ddd coprime to ppp makes dDqn(δ)dDq_n(\delta)dDqn​(δ) an algebraic integer. The proved local-to-global and recurrence lemmas recover the original simultaneous denominator bound. This is an equivalent local arithmetic formulation, not a proof or a weaker logical conjecture.

Preamble
import Definitions.Def_eulerMascheroni_factorialQuotient
open EulerMascheroni.Arithmetic
Formal statement
theorem EulerMascheroni.Arithmetic.gompertz_prime_local_bounds_conjecture (h : IsAlgebraic ℚ EulerMascheroni.gompertzConstant) :
    ∃ C : ℝ, 1 ≤ C ∧ ∀ n : ℕ, ∃ D : ℕ, 0 < D ∧ (D:ℝ) ≤ C^(n+1) ∧
      ∀ p : ℕ, p.Prime → ∃ d : ℤ, ¬(p:ℤ) ∣ d ∧
        IsIntegral ℤ ((d:ℝ)*((D:ℝ)*quotientCoeff EulerMascheroni.gompertzConstant n)) := by sorry
Source
Integral closedness and principal ideals over the integers; prime-local reformulation of the Euler factorial quotient arithmetic division conjecture. Compare Fischler–Rivoal, https://rivoal.perso.math.cnrs.fr/articles/ssmixte.pdf, Conjecture 2, and Matala-aho–Zudilin, https://arxiv.org/html/1703.02633, Section 2.

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