OAI/Probability/InvariantIsing/Spectral/SpectralFubini.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

Fubini identification of reconstructed spectral-group symbols.

  1. theorem OAI.InvariantIsing.integral_spectralDensity_CDF_fubini line 19

    Source documentation

    The layer-cake calculation in manuscript rot:function-path.

    theorem integral_spectralDensity_CDF_fubini (ρ eig : ι → ℝ) (hρ : ∀ a, 0 < ρ a)
        (hρsum : ∑ a, ρ a = 1) (p : OverlapPath) (a : ι) {q : ℝ}
        (hq : q ∈ Icc (0 : ℝ) 1) :
        (∫ r in q..1, spectralPathDensity ρ eig hρ hρsum p a r *
          pathMeasure.real {u | p u ≤ r}) =
          ∫ u, (∫ r in max q (p u)..1, spectralPathDensity ρ eig hρ hρsum p a r) ∂pathMeasure := by
    …

    Mentions: OAI.InvariantIsing.OverlapPath, OAI.InvariantIsing.spectralPathDensity

  2. theorem OAI.InvariantIsing.spectralGroupSymbol_eq_CDF_integral line 61
  3. theorem OAI.InvariantIsing.spectralGroupSymbol_eq_projectedResolvent line 139

    Source documentation

    The full reconstructed-symbol identity in manuscript rot:function-path.

    theorem spectralGroupSymbol_eq_projectedResolvent (ρ eig : ι → ℝ) (hρ : ∀ a, 0 < ρ a)
        (hρsum : ∑ a, ρ a = 1) (p : OverlapPath) (a : ι) {s : ℝ}
        (hs : s ∈ Icc (0 : ℝ) 1) :
        pathSymbol (spectralGroupDiagonal ρ eig hρ hρsum p a)
          (spectralGroupPath ρ eig hρ hρsum p a) s =
          projectedResolvent ρ eig hρ hρsum a (deficit p (p s)) := by
    …

    Mentions: OAI.InvariantIsing.OverlapPath, OAI.InvariantIsing.pathSymbol, OAI.InvariantIsing.spectralGroupDiagonal, OAI.InvariantIsing.spectralGroupPath, OAI.InvariantIsing.projectedResolvent