OAI/Geometry/RCD/Heat/HeatReversePoincare.lean
2 declarations, 0 contain sorry, 0 declared as axioms
The pointwise reverse Poincaré inequality for bounded L² data
- theorem
OAI.RegularPointCoordinates.integral_indicatorConstLp_mulline 17Source 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 … - theorem
OAI.RegularPointCoordinates.NoncollapsedRCD.heat_reverse_poincareline 30Source 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 …