OAI/NumberTheory/JointDickman/Arithmetic/PrimeProductTail.lean

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4 declarations, 0 contain sorry, 0 declared as axioms

Reciprocal mass of prime products near a cutoff

  1. theorem OAI.JointDickman.prime_reciprocal_product_fiber line 12

    Source documentation

    Fixing all but one prime leaves an interval of multiplicative width N/Y. The bound is uniform in the product r of the fixed primes.

    theorem prime_reciprocal_product_fiber : ∃ C : ℝ, 0 ≤ C ∧
        ∀ (P : Finset ℕ) (y Y N r : ℝ), 2 ≤ y → 0 < Y → Y ≤ N → 0 < r →
          (∀ p ∈ P, p.Prime ∧ y < (p:ℝ)) →
          (∑ p ∈ P.filter (fun p : ℕ => Y < r*(p:ℝ) ∧ r*(p:ℝ) ≤ N), 1/(p:ℝ)) ≤
            (Real.log (N/Y)+C)/Real.log y := by
    …
  2. def OAI.JointDickman.reciprocalPrimeTupleTail line 40
  3. theorem OAI.JointDickman.reciprocalPrimeTupleTail_fibers line 45
  4. theorem OAI.JointDickman.reciprocalPrimeTupleTail_bound line 68

    Source documentation

    Repeated primes are allowed. Thus this also controls every fixed-cardinality term of the squarefree divisor expansion.

    theorem reciprocalPrimeTupleTail_bound : ∃ C : ℝ, 0 ≤ C ∧
        ∀ (P : Finset ℕ) (h : ℕ) (y Y N : ℝ), 2 ≤ y → 0 < Y → Y ≤ N →
          (∀ p ∈ P, p.Prime ∧ y < (p:ℝ)) →
          reciprocalPrimeTupleTail P (h+1) Y N ≤
            ((Real.log (N/Y)+C)/Real.log y)*(∑ p ∈ P, 1/(p:ℝ))^h := by
    …

    Mentions: OAI.JointDickman.reciprocalPrimeTupleTail