File size: 7,638 Bytes
5711324
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
import OAI.Analysis.CircleDomains.Rigidity.CodeRealFreeTrace
import OAI.Analysis.CircleDomains.Selection.RealDomainIntersections
import OAI.Analysis.CircleDomains.Selection.FiniteFlagIntersections
import OAI.Analysis.CircleDomains.Probability.BandMeasure
import OAI.Analysis.CircleDomains.Selection.MeanLevelAssembly

namespace OAI

/-! Generic prior-level intersections for real coordinates under a base-code
law, with physical, flagged, and free contributions. -/

open Set Function Filter MeasureTheory
open scoped Topology ENNReal NNReal

noncomputable section
namespace CircleDomainRigidity

attribute [local instance] sphereMetric sphereBorel
local instance : BorelSpace Sphere := ⟨rfl⟩
variable [MeasurableSpace C(PathTime, Sphere)] [BorelSpace C(PathTime, Sphere)]

theorem mean_code_real_level_intersections_finite
    (hcoarea : PlanarLipschitzFiberCoarea)
    (hsard : SmoothPlanarSard) (hsch : PlanarSchoenflies)
    (d : PathCodeData Sphere Sphere)
    (hG : IsOpen d.physicalDomain) (hU : IsOpen d.quotientDomain)
    (hdense : Dense d.quotientDomain) (hdust : d.dust = d.quotientDomainᶜ)
    (π : Sphere → Sphere) (hπ : Continuous π) (hclosed : IsClosedMap π) (hsurj : Surjective π)
    (hr : ∀ x y, π x = π y ↔ x = y ∨
      (x ∈ d.physicalDomainᶜ ∧ y ∈ connectedComponentIn d.physicalDomainᶜ x))
    (he : ∀ y : d.physicalDomain, (d.domainEquiv y).val = π y.val)
    (hTD : IsTotallyDisconnected d.quotientDomainᶜ)
    (hbad : ∀ p ∈ d.physicalDomainᶜ, π p ∈ d.quotientDomainᶜ)
    (Flags : Set Sphere) (hFlags : Flags.Countable) (hFlagsB : Flags ⊆ d.quotientDomainᶜ)
    (f : Sphere → ℝ) {M : ℝ} (hM : ∀ z ∈ d.quotientDomain, |f z| ≤ M)
    (hf : ContinuousOn f d.quotientDomain)
    (hv : ContDiffOn ℝ 1 (fun z : ℂ => f (π (z : Sphere)))
      (((↑) : ℂ → Sphere) ⁻¹' d.physicalDomain))
    (henergy : (∫⁻ z in ((↑) : ℂ → Sphere) ⁻¹' d.physicalDomain,
      ENNReal.ofReal ‖fderiv ℝ (fun z : ℂ => f (π (z : Sphere))) z‖ ^ 2) < ∞)
    {K : Set ℂ} (hK : IsCompact K)
    (hzero : ∀ z : ℂ, (z : Sphere) ∈ d.physicalDomain → z ∉ K → f (π (z : Sphere)) = 0)
    (hinfty : OnePoint.infty ∈ d.physicalDomain → f (π OnePoint.infty) = 0)
    (P : ProbabilityMeasure (BasePathCode d))
    (ρ : Sphere → ℝ≥0∞) (hρ : Measurable ρ)
    (hocc : meanCodeOccupation d P = sphericalArea.withDensity ρ)
    (hρ2 : (∫⁻ y, ρ y ^ 2 ∂sphericalArea) < ∞)
    (i : ℕ) (hm : (support (d.levelWeights i)).Countable)
    (hweight : countingSquareNorm (fun x : support (d.levelWeights i) =>
      d.levelWeights i x.val) < ∞)
    (hvisits : countingSquareNorm (fun x : support (d.levelWeights i) =>
      meanVisitCount (codePathLaw d P) x.val) < ∞)
    (hband : ∀ z ∈ d.quotientDomainᶜ, ENNReal.ofReal
      (limsup f (𝓝[d.quotientDomain] z) - liminf f (𝓝[d.quotientDomain] z)) ≤
        d.levelWeights i z)
    (hmFree : ∀ z ∈ d.quotientDomainᶜ \ Flags, d.levelWeights i z = 0)
    (hcover : ∀ x ∈ support (d.levelWeights i), ∀ᶠ n in atTop, x ∈ d.flagDeletions n)
    (hdeletions : ∀ n, (d.flagDeletions n : Set Sphere) ⊆ Flags)
    (hH : ∀ j, IsClosed (d.levels j))
    (hP : OrderedLevelNullCompatibility d.levels (d.quotientDomainᶜ \ Flags))
    (hunique : ∀ x ∈ d.quotientDomainᶜ \ Flags, ∀ j a b,
      (a, x) ∈ d.levels j → (b, x) ∈ d.levels j → a = b)
    (ω : TupleType → ℝ≥0∞) [SFinite (tupleReference ω)]
    (hτ : meanCodeTuple d P ≪ tupleReference ω)
    (hlevel : ∀ θ x, (θ, x) ∈ d.levels i ↔ (x, θ) ∈ circleBandGraph d.quotientDomain f) :
    (∫⁻ θ : UnitAddCircle, ∫⁻ Γ : BasePathCode d,
      pathImageCount {x | (θ, x) ∈ d.levels i} Γ.val.1 ∂(P : Measure _)) < ∞ := by
  have hfree := ae_code_real_free_level_incidence_null hsard hsch d hG hU hdense hdust
    π hπ hclosed hsurj hr he hTD hbad Flags hFlags hFlagsB f hM hf hv henergy P ρ hρ hocc hρ2
    i hm hweight hvisits hband hmFree hcover hdeletions hH hP hunique ω hτ hlevel
  have hfinite : ∀ᵐ γ ∂(codePathLaw d P : Measure C(PathTime, Sphere)),
      physicalDomainLength d.domainEquiv d.basePoint γ < ∞ := by
    change ∀ᵐ γ ∂(P : Measure (BasePathCode d)).map (codePath d), _
    apply (ae_map_iff (measurable_codePath d).aemeasurable
      (measurableSet_finitePhysicalDomainLength d.domainEquiv hU d.basePoint)).mpr
    exact Eventually.of_forall fun Γ => Γ.property.1.1
  have hdom := mean_real_domain_circle_count_finite hcoarea hG d.domainEquiv hU d.basePoint π hπ he
    f hf hv henergy hK hzero hinfty (codePathLaw d P) hfinite ρ hρ
    ((meanPhysicalOccupation_codePathLaw d hU P).trans hocc) hρ2
  have hvol : ∀ x ∈ Flags, volume {θ : UnitAddCircle | (θ, x) ∈ d.levels i} ≤ d.levelWeights i x := by
    intro x hx
    have heq : {θ : UnitAddCircle | (θ, x) ∈ d.levels i} =
        {θ : UnitAddCircle | (x, θ) ∈ circleBandGraph d.quotientDomain f} :=
      Set.ext fun θ => hlevel θ x
    rw [heq]
    exact (volume_circleBandGraph_incidence_le_budget hM
      (by rw [hdense.closure_eq]; exact mem_univ x) le_rfl).trans (hband x (hFlagsB hx))
  have hflag := mean_flag_intersection_count_finite_of_support (hH i) Flags hFlags
    (d.levelWeights i) hvol (codePathLaw d P) hm hweight hvisits
  have hσU : IsSigmaCompact d.quotientDomain := by
    let : LocallyCompactSpace d.quotientDomain := hU.locallyCompactSpace
    exact isSigmaCompact_iff_sigmaCompactSpace.mpr inferInstance
  have hfree' : ∀ᵐ Γ ∂(P : Measure (BasePathCode d)), ∀ᵐ θ : UnitAddCircle ∂volume,
      ¬ ∃ x ∈ range (codePath d Γ) ∩ (d.quotientDomainᶜ \ Flags), (θ, x) ∈ d.levels i := by
    filter_upwards [hfree] with Γ hΓ
    exact ae_iff.mpr (by simpa only [not_not, codePath] using hΓ)
  have hb := mean_parameter_level_count_le_of_no_free_hits (hH i)
    d.quotientDomain Flags hσU hFlags P (codePath d) (measurable_codePath d) hfree'
  have hDmeas := measurable_sigmaCompact_restricted_relation_path_count hσU
    ((hH i).preimage continuous_swap)
  have hFmeas := measurable_flag_intersection_count (hH i) Flags hFlags
  have hdint (θ : UnitAddCircle) :
      (∫⁻ Γ : BasePathCode d, pathImageCount (d.quotientDomain ∩ {x | (θ, x) ∈ d.levels i})
        (codePath d Γ) ∂(P : Measure _)) =
      ∫⁻ γ, pathImageCount (d.quotientDomain ∩ {x | (θ, x) ∈ d.levels i}) γ
        ∂(codePathLaw d P : Measure _) := by
    have hmeas : Measurable (fun γ : C(PathTime, Sphere) =>
        pathImageCount (d.quotientDomain ∩ {x | (θ, x) ∈ d.levels i}) γ) :=
      hDmeas.comp (measurable_id.prodMk measurable_const)
    rw [codePathLaw, ProbabilityMeasure.toMeasure_map]
    exact (lintegral_map hmeas (measurable_codePath d)).symm
  have hfint (θ : UnitAddCircle) :
      (∫⁻ Γ : BasePathCode d, pathImageCount (Flags ∩ {x | (θ, x) ∈ d.levels i})
        (codePath d Γ) ∂(P : Measure _)) =
      ∫⁻ γ, pathImageCount (Flags ∩ {x | (θ, x) ∈ d.levels i}) γ
        ∂(codePathLaw d P : Measure _) := by
    have hmeas : Measurable (fun γ : C(PathTime, Sphere) =>
        pathImageCount (Flags ∩ {x | (θ, x) ∈ d.levels i}) γ) :=
      hFmeas.comp (measurable_id.prodMk measurable_const)
    rw [codePathLaw, ProbabilityMeasure.toMeasure_map]
    exact (lintegral_map hmeas (measurable_codePath d)).symm
  apply hb.trans_lt
  apply ENNReal.add_lt_top.mpr
  constructor
  · simp_rw [hdint]
    simpa only [hlevel] using hdom
  · simpa only [hfint] using hflag

end CircleDomainRigidity

end

end OAI