OAI/GroupTheory/PolycyclicRecognition/Analysis/DiagonalAffineCellProfiles.lean

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Affine limits and retained cell mass on one diagonal

  1. theorem OAI.PolycyclicRecognition.exists_diagonal_affine_cell_profiles line 17

    Source documentation

    An exhausting family of interior affine identities, convergent offsets, and supported joint laws produce the actual common good sets needed by the reflection-volume argument, including points over the boundary.

    theorem exists_diagonal_affine_cell_profiles
        {V W N : Type*} [NormedAddCommGroup V] [NormedSpace ℝ V]
        [NormedAddCommGroup W] [NormedSpace ℝ W] [FiniteDimensional ℝ W] [MeasurableSpace N]
        (q : V →ₗ[ℝ] W) (hq : Continuous q) (hqsurj : Function.Surjective q)
        (cell : Set W) (hconv : Convex ℝ cell) (hclosed : IsClosed cell)
        (hint : (interior cell).Nonempty)
        (S : Set C(V, W)) [MeasurableSpace S] [BorelSpace S]
        [BorelSpace (S × S)] [HasOuterApproxClosed (S × S)]
        (K : ℕ → Set V) (hK : ∀ j, IsCompact (K j))
        (hcover : ∀ C : Set V, IsCompact C → ∀ᶠ j in atTop, C ⊆ K j)
        (scale : ℕ → ℕ → ℝ) (hs : ∀ j, Tendsto (scale j) atTop atTop)
        (μ : Measure N) (Q : ℕ → ℕ → Set N)
    …