OAI/Analysis/LipschitzHilbert/Trees/SourceTreeCellGluing.lean

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7 declarations, 0 contain sorry, 0 declared as axioms

Countable gluing on the actual horizontal Whitney cells and half-open transverse cells. A finite rectangle bound suffices.

  1. abbrev OAI.LipschitzHilbert.SourceWhitney.ProductCellIndex line 16
  2. def OAI.LipschitzHilbert.SourceWhitney.productCell line 18
  3. theorem OAI.LipschitzHilbert.SourceWhitney.productCell_measurable line 21
  4. theorem OAI.LipschitzHilbert.SourceWhitney.productCell_disjoint line 24
  5. theorem OAI.LipschitzHilbert.SourceWhitney.productCell_iUnion line 40
  6. theorem OAI.LipschitzHilbert.SourceWhitney.product_finite_bound line 51

    Source documentation

    Any finite collection is dominated by its finite rectangle of horizontal and transverse indices.

    theorem product_finite_bound
        (F : ProductCellIndex tiles x ell → ℝ) (hF : ∀ i, 0≤F i) (C : ℝ)
        (hrect : ∀ (S : Finset (CellIndex tiles x ell)) (T : Finset ℤ),
          (∑ i∈S×ˢT, F i)≤C) (A : Finset (ProductCellIndex tiles x ell)) :
        (∑ i∈A, F i)≤C := by
    …

    Mentions: OAI.LipschitzHilbert.SourceWhitney.ProductCellIndex, OAI.LipschitzHilbert.SourceWhitney.CellIndex

  7. theorem OAI.LipschitzHilbert.SourceWhitney.product_paste_integrable_bound line 66

    Source documentation

    Integrability of the pasted function follows from the proved local integrals and their uniform finite-rectangle bound.

    theorem product_paste_integrable_bound (b W : ℝ) (hW : 0<W)
        (F : CellIndex tiles x ell → ℝ×ℝ → V)
        (hF : ∀ i : ProductCellIndex tiles x ell,
          IntegrableOn (F i.1) (productCell tiles x ell b W i) (volume.prod volume))
        (C : ℝ) (hrect : ∀ (S : Finset (CellIndex tiles x ell)) (T : Finset ℤ),
          (∑ i∈S×ˢT, ∫ z in productCell tiles x ell b W i, ‖F i.1 z‖ ∂volume.prod volume)≤C) :
        Integrable (paste tiles x ell hne hpos F) (volume.prod volume) ∧
          (∫ z, ‖paste tiles x ell hne hpos F z‖ ∂volume.prod volume)≤C := by
    …

    Mentions: OAI.LipschitzHilbert.SourceWhitney.CellIndex, OAI.LipschitzHilbert.SourceWhitney.ProductCellIndex, OAI.LipschitzHilbert.SourceWhitney.productCell, OAI.LipschitzHilbert.SourceWhitney.paste