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LeanPool.Superdiffusion.Algsuperdiff.Section4.Provider.Regularity.StepSevenFlushLegBounds

StepSevenFlushLegBounds #

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

1. The pinned s-weights and the scalar helpers #

theorem Algsuperdiff.Section4.Provider.Regularity.sqrt_mul_inv_eq_sqrt_inv {sigma : ℝ} (hsigma : 0 < sigma) :
√sigma * sigma⁻¹ = √sigma⁻¹

√σ · σ⁻¹ = √(σ⁻¹) for σ > 0.

theorem Algsuperdiff.Section4.Provider.Regularity.sqrt_rootClauseBTopKs_le_budget {gamma alpha : ℝ} {n j m : ℤ} (hgamma0 : 0 ≤ gamma) (h2gamma : 2 * gamma ≤ 1 - alpha) (hnj : n ≤ j) (hjm : j ≤ m) :
√(rootClauseBTopKs gamma m j) ≤ 2 * Real.rpow 3 (1 / 4 * stepSixExponent alpha n m)

The σ-bridge budget absorption. At the regime 2γ ≤ 1-α, the fine σ-comparison factor is inside the quarter budget: √(rootClauseBTopKs γ m j) ≤ 2·3^{(1/4)(1-α)(m-n)} for n ≤ j ≤ m.

2. The ∇h flat and coordinate legs, by the printed sup binder #

3. The two Gagliardo legs, by the C^{0,1/2} data #

A Gagliardo window leg at the pin, toReal form. The Step-4 comparison at s = stepOneS = 1/4 on the truncated window.

4. The oscillation bridge #

The window oscillation's carrier bridge: the anchor-side eLpNorm reading IS the boundary lane's ‖·‖_{L²} reading.