OAI/Geometry/RCD/Heat/HeatVarianceContinuity.lean
3 declarations, 0 contain sorry, 0 declared as axioms
Continuity and endpoint identities for the heat variance pairing
- theorem
OAI.RegularPointCoordinates.heatSquarePairing_continuousline 17Source documentation
The variance pairing is continuous, including at both heat endpoints.
theorem heatSquarePairing_continuous (f w : Lp ℝ 2 μ) (C : ℝ≥0) (hf : ∀ᵐ x ∂μ, |f x| ≤ C) (T : ℝ) : Continuous (heatSquarePairing μ hQ f w C hf T) := by … - theorem
OAI.RegularPointCoordinates.heatSquarePairing_eq_integralline 31Source documentation
Integral representation with the actual heat functions.
theorem heatSquarePairing_eq_integral (f w : Lp ℝ 2 μ) (C : ℝ≥0) (hf : ∀ᵐ x ∂μ, |f x| ≤ C) (T s : ℝ) : heatSquarePairing μ hQ f w C hf T s = ∫ x, heatAt μ hQ s w x*(heatAt μ hQ (T-s) f x)^2 ∂μ := by …Mentions: OAI.RegularPointCoordinates.heatSquarePairing, OAI.RegularPointCoordinates.heatAt
- theorem
OAI.RegularPointCoordinates.heatSobolev_iterateline 42Source documentation
The heat semigroup identity holds in the actual Sobolev space.
theorem heatSobolev_iterate (f : Lp ℝ 2 μ) (s t : ℝ) (hs : 0 < s) (ht : 0 < t) : heatSobolev μ hQ s hs (SobolevSpace.toLp μ hQ (heatSobolev μ hQ t ht f)) = heatSobolev μ hQ (s+t) (add_pos hs ht) f := by …Mentions: OAI.RegularPointCoordinates.heatSobolev, OAI.RegularPointCoordinates.SobolevSpace.toLp