Integrating a bounded cell weight #
A nonnegative weight bounded on a cell multiplies its quadratic energy by at most the same cell constant.
theorem
ESS.bu_short_weighted_energy_cell_le
(Cell S : Set CKN.Foundation.Parabolic.ParabolicPoint)
(hCell : MeasurableSet Cell)
(hS : MeasurableSet S)
(E W : CKN.Foundation.Parabolic.ParabolicPoint → ℝ)
(C : ℝ)
(hC : 0 ≤ C)
(hEInt : MeasureTheory.IntegrableOn E Cell MeasureTheory.volume)
(hEWInt :
MeasureTheory.IntegrableOn (fun (z : CKN.Foundation.Parabolic.ParabolicPoint) => W z * E z) (Cell ∩ S)
MeasureTheory.volume)
(hE0 : ∀ (z : CKN.Foundation.Parabolic.ParabolicPoint), 0 ≤ E z)
(hW : ∀ z ∈ Cell ∩ S, 0 ≤ W z ∧ W z ≤ C)
:
A bounded nonnegative weight on a measurable part of a cell is
controlled by the full cell energy integral (lem:bu-small-time).