OAI/Geometry/RCD/Heat/HeatMassTimeContinuity.lean
3 declarations, 0 contain sorry, 0 declared as axioms
Positive-time continuity and integrability of full heat mass
- theorem
OAI.RegularPointCoordinates.cutoffHeatMassAt_continuousOnline 23Source documentation
The finite positive Bochner measure may be singular; continuity follows from the actual joint kernel and the fixed compact cutoff.
theorem cutoffHeatMassAt_continuousOn (M : PositiveBilinearMeasure X E) (x : X) (v : E) : ContinuousOn (fun t => ⟪v, cutoffHeatMassAt μ hQ hk hχ hc M t x v⟫_ℝ) (Ioi 0) := by …Mentions: OAI.RegularPointCoordinates.PositiveBilinearMeasure, OAI.RegularPointCoordinates.cutoffHeatMassAt
- theorem
OAI.RegularPointCoordinates.cutoffAverageHeatMassAt_continuousOnline 39Source documentation
Averaging in the first pole preserves the same positive-time continuity against the full Bochner measure.
theorem cutoffAverageHeatMassAt_continuousOn (M : PositiveBilinearMeasure X E) (A : Set X) (hA : MeasurableSet A) (hbounded : Bornology.IsBounded A) (v : E) : ContinuousOn (fun t => ⟪v, cutoffAverageHeatMassAt μ hQ hk hχ hc M A hA hbounded t v⟫_ℝ) (Ioi 0) := by …Mentions: OAI.RegularPointCoordinates.PositiveBilinearMeasure, OAI.RegularPointCoordinates.cutoffAverageHeatMassAt
- theorem
OAI.RegularPointCoordinates.cutoffAverageHeatMassAt_difference_intervalIntegrableline 56Source documentation
Both terms in a long-time block are genuinely integrable.
theorem cutoffAverageHeatMassAt_difference_intervalIntegrable (M : PositiveBilinearMeasure X E) (A : Set X) (hA : MeasurableSet A) (hbounded : Bornology.IsBounded A) (x : X) (v : E) {s t : ℝ} (hs : 0 < s) (hst : s ≤ t) : IntervalIntegrable (fun r => ⟪v, (cutoffAverageHeatMassAt μ hQ hk hχ hc M A hA hbounded r - cutoffHeatMassAt μ hQ hk hχ hc M r x) v⟫_ℝ) volume s t := by …Mentions: OAI.RegularPointCoordinates.PositiveBilinearMeasure, OAI.RegularPointCoordinates.cutoffAverageHeatMassAt, OAI.RegularPointCoordinates.cutoffHeatMassAt