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Atlas.NumberTheoryI.code.Prop1824

theorem RiemannStieltjes.stieltjesSum_linear_integrand {a b : ā„} {š•œ : Type u_1} [NormedField š•œ] (PT : TaggedPartition a b) (c₁ cā‚‚ : š•œ) (f₁ fā‚‚ h : ā„ → š•œ) :
stieltjesSum PT (fun (x : ā„) => c₁ * f₁ x + cā‚‚ * fā‚‚ x) h = c₁ * stieltjesSum PT f₁ h + cā‚‚ * stieltjesSum PT fā‚‚ h
theorem RiemannStieltjes.stieltjesSum_linear_integrator {a b : ā„} {š•œ : Type u_1} [NormedField š•œ] (PT : TaggedPartition a b) (c₁ cā‚‚ : š•œ) (f g₁ gā‚‚ : ā„ → š•œ) :
(stieltjesSum PT f fun (x : ā„) => c₁ * g₁ x + cā‚‚ * gā‚‚ x) = c₁ * stieltjesSum PT f g₁ + cā‚‚ * stieltjesSum PT f gā‚‚
theorem RiemannStieltjes.norm_linear_combo_sub {š•œ : Type u_1} [NormedField š•œ] (c₁ cā‚‚ A B S₁ Sā‚‚ : š•œ) :
‖c₁ * A + cā‚‚ * B - (c₁ * S₁ + cā‚‚ * Sā‚‚)‖ ≤ ‖c₁‖ * ‖A - S₁‖ + ‖c₂‖ * ‖B - S₂‖
theorem RiemannStieltjes.eps_bound {š•œ : Type u_1} [NormedField š•œ] (c₁ cā‚‚ : š•œ) (ε : ā„) (hε : 0 < ε) :
(‖c₁‖ + ‖c₂‖) * (ε / (2 * (‖c₁‖ + ‖c₂‖ + 1))) < ε
theorem RiemannStieltjes.abel_summation_tagged_partitions {a b : ā„} {š•œ : Type u_1} [NormedField š•œ] (P : IntervalPartition a b) (f g : ā„ → š•œ) :
∃ (PT_L : TaggedPartition a b) (PT_R : TaggedPartition a b), PT_L.IsRefinementOf P ∧ PT_R.IsRefinementOf P ∧ stieltjesSum PT_L f g + stieltjesSum PT_R g f = f b * g b - f a * g a
theorem RiemannStieltjes.stieltjesIntegrable_of_parts {a b : ā„} {š•œ : Type u_1} [NormedField š•œ] {f g : ā„ → š•œ} (hfg : StieltjesIntegrable f g a b) :
theorem RiemannStieltjes.integration_by_parts {a b : ā„} {š•œ : Type u_1} [NormedField š•œ] {f g : ā„ → š•œ} (hfg : StieltjesIntegrable f g a b) :
stieltjesIntegral f g a b + stieltjesIntegral g f a b = f b * g b - f a * g a