OAI/Geometry/RCD/Heat/UniformDyadicHeatBounds.lean

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A uniform two-sided decrement bound for the actual heat family

  1. theorem OAI.RegularPointCoordinates.uniform_dyadic_heat_bounds line 26

    Source documentation

    The published Gaussian bound, volume bounds and the actual annular error estimate imply both decrement bounds with one constant. In particular, the envelope and the lower mass are constructed from the same full measure.

    theorem uniform_dyadic_heat_bounds (hg : HasCoordinateHeatBounds μ ker)
        (m : ℕ) (hn : n = m + 2) (hρ : 0 < ρ) (hρr : ρ < r) (hκ : 0 ≤ κ)
        {R Vlo Vhi η lambda : ℝ} (hR : 0 < R) (hR1 : R ≤ 1)
        (hVlo : 0 < Vlo) (hVhi : 0 < Vhi) (hη : 0 ≤ η) (hlambda : 0 < lambda)
        (hreg : 2 * κ * (L : ℝ) ^ 2 + η ≤ lambda)
        (hχone : ∀ y ∈ ball p R, (χ.weight : X → ℝ) y = 1)
        (herror : ∀ t, 0 < t → t ≤ R ^ 2 → ‖harmonicHeatError μ hQ (k := ker) G χ t p‖ ≤ η)
    …

    Mentions: OAI.RegularPointCoordinates.HasCoordinateHeatBounds, OAI.RegularPointCoordinates.harmonicHeatError