OAI/Analysis/LipschitzHilbert/Trees/SourceLongTreeSupport.lean

GitHub source file

2 declarations, 0 contain sorry, 0 declared as axioms

Original long-packet angular supports lie in the cell of the actual Whitney density test. This is the common indicator kept on the frozen main term and the selector error.

  1. theorem OAI.LipschitzHilbert.OrdinaryDensityTest.contains_longer_angular_cell line 14
  2. theorem OAI.LipschitzHilbert.long_selector_support line 29

    Source documentation

    Every long original selector vanishes outside the single test cell. The conclusion applies before any freezing or error decomposition.

    theorem long_selector_support {ι κ : Type*} {ell0 w W tau : ℝ} {grid : ℤ}
        {witness : OrdinaryDensityTile} (test : OrdinaryDensityTest ell0 w W tau grid witness)
        (hell0 : 0<ell0) (tiles : Finset ι) (tile : ι → OrdinaryDensityTile)
        (selector : ι → κ → ℝ → ℂ)
        (hsupport : ∀ i∈tiles, ∀ a s, selector i a s≠0 →
          s∈scaledAngularCell (w/ell0) grid (tile i).level (tile i).cell)
        (hlen : ∀ i∈tiles, test.top.length≤ell0/DyadicLineGrid.scale (tile i).level)
        (hslope : ∀ i∈tiles, test.top.slope∈scaledAngularCell (w/ell0) grid (tile i).level (tile i).cell)
        {s : ℝ} (hs : s∉scaledAngularCell (w/ell0) grid test.level test.cell) :
        ∀ i∈tiles, ∀ a, selector i a s=0 := by
    …

    Mentions: OAI.LipschitzHilbert.OrdinaryDensityTile, OAI.LipschitzHilbert.OrdinaryDensityTest, OAI.LipschitzHilbert.scaledAngularCell, OAI.LipschitzHilbert.DyadicLineGrid.scale