Documentation

Atlas.LieGroups.code.MeasuresSupport

noncomputable def Meas.embedMap (X : Type u_1) [TopologicalSpace X] (MX : Type u_2) [AddCommGroup MX] [Module ℂ MX] [TopologicalSpace MX] [CompactlySupportedMeasureSpace X MX] :
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      def Meas.IsSupportedIn {X : Type u_1} [TopologicalSpace X] {MX : Type u_2} [AddCommGroup MX] [Module ℂ MX] [TopologicalSpace MX] [CompactlySupportedMeasureSpace X MX] (μ : MX) (K : Set X) :
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            theorem ConcreteMeasSupp.weakStarCauchyLimit_exists {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (μ : ℕ → C(X, ℂ) →L[ℂ] ℂ) (_hcauchy : IsWeakStarCauchy μ) (_hlim : ∀ (f : C(X, ℂ)), ∃ (c : ℂ), Filter.Tendsto (fun (n : ℕ) => (μ n) f) Filter.atTop (nhds c)) :
            ∃ (μ₀ : C(X, ℂ) →L[ℂ] ℂ), TendstoWeakStar μ μ₀
            theorem ConcreteMeasSupp.not_in_support_local_vanishing {X : Type u_1} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (μ : C(X, ℂ) →L[ℂ] ℂ) (x : X) (hx : x ∉ functionalSupport μ) :
            ∃ U ∈ nhds x, ∀ (g : C(X, ℂ)), (∀ y ∉ U, g y = 0) → μ g = 0
            theorem ConcreteMeasSupp.exists_pou_subordinate_open {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (S : Set X) (hS : IsOpen S) (U : X → Set X) (hUo : ∀ (x : X), IsOpen (U x)) (hUmem : ∀ x ∈ S, x ∈ U x) :
            ∃ (ρ : ℕ → C(X, ℝ)) (idx : ℕ → X), (∀ (n : ℕ), ρ n ≠ 0 → idx n ∈ S) ∧ (∀ (n : ℕ) (x : X), 0 ≤ (ρ n) x) ∧ (∀ (n : ℕ), tsupport ⇑(ρ n) ⊆ U (idx n)) ∧ (LocallyFinite fun (n : ℕ) => Function.support ⇑(ρ n)) ∧ ∀ x ∈ S, ∑ᶠ (n : ℕ), (ρ n) x = 1
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              theorem ConcreteMeasSupp.pou_decomposition {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (S : Set X) (hS : IsOpen S) (f : C(X, ℂ)) (hfS : ∀ x ∉ S, f x = 0) (U : X → Set X) (hUo : ∀ (x : X), IsOpen (U x)) (hUmem : ∀ x ∈ S, x ∈ U x) :
              ∃ (g : ℕ → C(X, ℂ)) (idx : ℕ → X), (∀ (n : ℕ), g n ≠ 0 → idx n ∈ S) ∧ (∀ (n : ℕ), ∀ y ∉ U (idx n), (g n) y = 0) ∧ (LocallyFinite fun (n : ℕ) => Function.support ⇑(g n)) ∧ ∀ (x : X), HasSum (fun (n : ℕ) => (g n) x) (f x)
              theorem ConcreteMeasSupp.pou_kills_functional {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (μ : C(X, ℂ) →L[ℂ] ℂ) (f : C(X, ℂ)) (g : ℕ → C(X, ℂ)) (hlf : LocallyFinite fun (n : ℕ) => Function.support ⇑(g n)) (hpw : ∀ (x : X), HasSum (fun (n : ℕ) => (g n) x) (f x)) (hzero : ∀ (n : ℕ), μ (g n) = 0) :
              μ f = 0
              theorem ConcreteMeasSupp.partitionOfUnity_kills_on_openSet {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (μ : C(X, ℂ) →L[ℂ] ℂ) (f : C(X, ℂ)) (S : Set X) (hS : IsOpen S) (hfS : ∀ x ∉ S, f x = 0) (U : X → Set X) (hUo : ∀ (x : X), IsOpen (U x)) (hUmem : ∀ x ∈ S, x ∈ U x) (hUkill : ∀ x ∈ S, ∀ (g : C(X, ℂ)), (∀ y ∉ U x, g y = 0) → μ g = 0) :
              μ f = 0
              theorem ConcreteMeasSupp.functional_kills_vanishing_on_closed_support {X : Type u_2} [TopologicalSpace X] [LocallyCompactSpace X] [SecondCountableTopology X] [T2Space X] (μ : C(X, ℂ) →L[ℂ] ℂ) (f : C(X, ℂ)) (hf : ∀ x ∈ functionalSupport μ, f x = 0) (hloc : ∀ x ∉ functionalSupport μ, ∃ U ∈ nhds x, ∀ (g : C(X, ℂ)), (∀ y ∉ U, g y = 0) → μ g = 0) :
              μ f = 0