OAI/Geometry/RCD/Heat/HeatReversePoincare.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

The pointwise reverse Poincaré inequality for bounded L² data

  1. theorem OAI.RegularPointCoordinates.integral_indicatorConstLp_mul line 17

    Source documentation

    Finite-measure indicators test a weighted integral without introducing an abstract duality hypothesis.

    theorem integral_indicatorConstLp_mul (s : Set X) (hs : MeasurableSet s)
        (hfin : μ s ≠ ∞) (g : X → ℝ) :
        (∫ x, indicatorConstLp 2 hs hfin (1:ℝ) x*g x ∂μ) = ∫ x in s, g x ∂μ := by
    …
  2. theorem OAI.RegularPointCoordinates.NoncollapsedRCD.heat_reverse_poincare line 30

    Source documentation

    The actual heat flow satisfies reverse Poincaré almost everywhere. The right side is the heat flow of the actual L² square.

    theorem NoncollapsedRCD.heat_reverse_poincare
        (K : ℝ) (n : ℕ) (hn : 2 ≤ n) (hX : NoncollapsedRCD K n X) (p : X) :
        letI : ProperSpace X := hX.proper K n hn
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD