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LeanPool.Superdiffusion.Algsuperdiff.Section4.Provider.ExcessDecay.InteriorClause

InteriorClause #

Ported from scottnarmstrong/Superdiffusion at 7f20476385d4af418f110303085ad0740c9eba46. Module imports, support namespace and local option directives adapted for Lean Pool.

The interior clause's Caccioppoli input, in the frozen theorem's own carriers #

This module closes the interior Caccioppoli seam of §4.3.

  ⨍_{(x-z)+□_n} ∇u_tilde · ã_{L,n+2} ∇u_tilde
      ≤ C(d) ( σ_{n+2} 3^{-2(n+2)} ‖u - (u)_W‖²_{L²(W)}
               + s^{-11} σ_{n+2}^{-1} 3^{2s(n+2)} [g]²_{H^s(W)} ) ,
      W = ((z+□_{n+2}) ∩ □_m) ,

almost surely on the anchor's good event 𝒢(n+2, z; s/8, 1/2), for every H¹(□_m) solution u of the anchor's own Dirichlet problem whose forcing g lies in H^s(W;ℝ^d), under the anchor's geometry binder and its interior (frontier-empty) gate.

What each unit contributes #

Two disclosed frame facts (inputs to the consumer, not gaps in this estimate) #

  1. The left-hand side is stated in the translated frame — at the core (x-z) + □_n, for the transported solution u(· + z) and the flux-corrected family at translateCutoffSample z ω, which is where every proved §4.3 cap lives. Reading the same quantity at the anchor's own core x + □_n is one application of normalizedSetAverage_translateSet away once the flux-corrected family is rebuilt at the untranslated sample; that construction is not performed here.

The force binder, and where it differs from the frozen statement #

The frozen statement carries the equation but not the g- and h-regularity clauses: it quantifies over an arbitrary g : Vec d → Vec d. The estimate below carries the paper's own clause for g — in the anchor's own window carriers — because l.coarse.grained.Caccioppoli has it as a premise. (When the Gagliardo seminorm is ⊤ the frozen statement's interior clause is trivially true, so only the finite-seminorm-but-not-H^s case is at issue.)

References #

1. The scale weight of the parent cube #

The Besov scale weight of an origin cube, as an explicit 3-power.

2. The right-hand side in the anchor's carriers #

The interior Caccioppoli right-hand side, in the frozen theorem's own carriers, on an arbitrary window W.

The mean-subtracted L² norm and the fractional force seminorm are the frozen statement's own objects (eLpNorm … (normalizedVolumeMeasureOn W) and normalizedGagliardo W s g); the 3- and s-powers are explicit. The composed estimate below instantiates W at the anchor's own window ((z+□_{n+2}) ∩ □_m).

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Instances For

    3. The arithmetic stitch #

    theorem Algsuperdiff.Section4.Provider.ExcessDecay.anchor_stitch {A L2 B Bes K W G : ℝ} (hA : 0 ≤ A) (hB : 0 ≤ B) (hL2 : 0 ≤ L2) (hBes : 0 ≤ Bes) (hK : 0 ≤ K) (hW : 0 ≤ W) (hG : 0 ≤ G) (hbes : Bes ≤ K * W * G) :
    A * L2 + B * Bes ^ 2 ≤ (K ^ 2 + 1) * (A * L2 + B * W ^ 2 * G ^ 2)

    Abstract in every quantity, so no analytic content hides here.

    5. The composed interior estimate #

    theorem Algsuperdiff.Section4.Provider.ExcessDecay.ae_interiorCaccioppoliEnergy_anchorWindow (d : ℕ) [NeZero d] :
    ∃ (C : ℝ) (Cout : ℝ), 0 < C ∧ 0 < Cout ∧ ∀ (M : Section3.ABKModel d), ∀ s ∈ Set.Icc (64 * M.gamma) 1, M.gamma ≤ C⁻¹ * Section3.Disorder.cstar M ^ 10 → M.gamma * |Real.log M.gamma| ^ 2 ≤ (s / 8).rpow (3 / 2) * Section3.Disorder.cstar M ^ 2 * (1 / 2) → ∀ (hs : 0 < s) (L m n : ℤ), m ≤ L → n + 2 ≤ m → ∀ (x z : HCPolySupport.Vec d) (hz : z ∈ HCPolySupport.openCubeSet (HCPolySupport.originCube d m)), (fun (y : HCPolySupport.Vec d) => x + y) '' HCPolySupport.openCubeSet (HCPolySupport.originCube d n) ⊆ (fun (y : HCPolySupport.Vec d) => z + y) '' HCPolySupport.openCubeSet (HCPolySupport.originCube d (n + 1)) ∩ HCPolySupport.openCubeSet (HCPolySupport.originCube d m) → ∀ (hfr : (fun (y : HCPolySupport.Vec d) => z + y) '' HCPolySupport.openCubeSet (HCPolySupport.originCube d (n + 2)) ∩ frontier (HCPolySupport.openCubeSet (HCPolySupport.originCube d m)) = ∅), ∀ᵐ (omega : Section3.Cutoff.CutoffSample d) ∂↑(Section3.Cutoff.cutoffSampleLaw M), omega ∈ Frozen.Section4.goodEventAt M (Support.cgEllipLowerConstant d) (n + 2) z ⟨s / 8, ⋯⟩ (1 / 2) → ∀ (u hdat : HCPolySupport.H1Function (HCPolySupport.openCubeSet (HCPolySupport.originCube d m))) (g : HCPolySupport.Vec d → HCPolySupport.Vec d), Support.IsDirichletSolutionOn (Section3.Cutoff.coefficientCutoff M.nu L omega).toCoeffField (HCPolySupport.originCube d m) u hdat g → MeasureTheory.MemLp g 2 (Support.normalizedVolumeMeasureOn ((fun (y' : HCPolySupport.Vec d) => z + y') '' HCPolySupport.openCubeSet (HCPolySupport.originCube d (n + 2)) ∩ HCPolySupport.openCubeSet (HCPolySupport.originCube d m))) → MeasureTheory.MemLp (HCPolySupport.Gagliardo.gagliardoKernel s 2 g) 2 (Support.normalizedGagliardoMeasureOn ((fun (y' : HCPolySupport.Vec d) => z + y') '' HCPolySupport.openCubeSet (HCPolySupport.originCube d (n + 2)) ∩ HCPolySupport.openCubeSet (HCPolySupport.originCube d m))) → HCPolySupport.Book.Ch03.localizedCoeffEnergyValue ((fun (y : HCPolySupport.Vec d) => x - z + y) '' HCPolySupport.openCubeSet (HCPolySupport.originCube d n)) ((Support.fluxCorrectedCoeffFamily M L (n + 2) (HCPolySupport.originCube d (n + 2)) (Section3.Cutoff.translateCutoffSample z omega)).coeffOn (HCPolySupport.originCube d (n + 2))) (HCPolySupport.H1Function.untranslate z (u.restrict ⋯ ⋯)) ≤ Cout * interiorAnchorEnergyRHSOn M n s ((fun (y' : HCPolySupport.Vec d) => z + y') '' HCPolySupport.openCubeSet (HCPolySupport.originCube d (n + 2)) ∩ HCPolySupport.openCubeSet (HCPolySupport.originCube d m)) u.toFun g

    The interior clause's Caccioppoli input.

    Entered at the frozen theorem's own binders — its Dirichlet datum on □_m, its geometry binder, its interior (frontier-empty) gate, its good event, its hoisted smallness clauses and its s-range — and concluded in the anchor's own right-hand-side carriers on the anchor's own window W = ((z+□_{n+2}) ∩ □_m):

      ⨍_{(x-z)+□_n} ∇u_tilde · ã_{L,n+2} ∇u_tilde  ·  1_𝒢
          ≤ Cout ( σ_{n+2} 3^{-2(n+2)} ‖u - (u)_W‖²_{L²(W)}
                   + s^{-11} σ_{n+2}^{-1} 3^{2s(n+2)} [g]²_{H^s(W)} ) ,
    

    where u_tilde = u(· + z) is the transported solution and ã_{L,n+2} the flux-corrected field at the translated sample. The force hypothesis is the manuscript's g ∈ H^s(W;ℝ^d) in the anchor's own carriers.