OAI/Topology/ArtinGroups/ParabolicIntersections/MeshProjectionCutoff.lean

GitHub source file

5 declarations, 0 contain sorry, 0 declared as axioms

The actual path projections vanish at a finite quantum cutoff.

  1. lemma OAI.HarmonicArtin.ParabolicIntersections.meshProjection_trace_zero line 10
  2. lemma OAI.HarmonicArtin.ParabolicIntersections.meshProjection_trace_one line 15
  3. lemma OAI.HarmonicArtin.ParabolicIntersections.meshProjection_trace_step line 24
  4. theorem OAI.HarmonicArtin.ParabolicIntersections.meshProjection_weightedTrace line 47

    Source documentation

    The weighted trace is the quantum integer, without any graph classification or assumption of mesh nilpotence.

    theorem meshProjection_weightedTrace (μ : V → ℝ) (hμ : ∀ v, 0<μ v) (δ : ℝ)
        (heigen : ∀ v, (∑ u : {u : V // G.Adj u v}, μ u)=δ*μ v)
        (H : ℕ) (hpos : ∀ n, 0 < n → n < H → 0 < meshQuantum δ n) :
        ∀ n, n<H → meshWeightedTrace μ (meshProjection G μ δ n)=
          (meshQuantum δ (n+1) : ℂ)*∑ v, (μ v : ℂ) := by
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.meshQuantum, OAI.HarmonicArtin.ParabolicIntersections.meshWeightedTrace, OAI.HarmonicArtin.ParabolicIntersections.meshProjection

  5. theorem OAI.HarmonicArtin.ParabolicIntersections.meshProjection_eventually_zero line 74

    Source documentation

    Some positive length has zero path projection. This is the finite essential-path bound, proved from a positive adjacency eigenvector below 2.

    theorem meshProjection_eventually_zero (μ : V → ℝ) (hμ : ∀ v, 0<μ v)
        (δ : ℝ) (hδ0 : 0<δ) (hδ2 : δ<2)
        (heigen : ∀ v, (∑ u : {u : V // G.Adj u v}, μ u)=δ*μ v) :
        ∃ N : ℕ, 0<N ∧ ∀ v, meshProjection G μ δ N v=0 := by
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.meshProjection