Paper contour transfer for rooted measured convergence #
Composition of the contour law convergence with the paper time convention and the divisor of Remark 5.10: convergence of the rescaled paper contour of random plane trees gives convergence of the laws of the rooted measured trees.
Reference: J.-F. Le Gall, Random trees and applications, Probab. Surveys 2 (2005).
theorem
BGW.ContinuumTrees.FiniteTree.tendsto_rooted_laws_of_paperContour_remarkDivisor
{Ω : ℕ → Type u_1}
[(n : ℕ) → MeasurableSpace (Ω n)]
(μ : (n : ℕ) → MeasureTheory.ProbabilityMeasure (Ω n))
(t : (n : ℕ) → Ω n → PlaneTree)
(ht : ∀ (n : ℕ), Measurable (t n))
{μ₀ θ : ℝ}
(hμ₀ : 0 < μ₀)
{N : ℕ → ℕ}
{B : ℕ → ℝ}
(hN : ∀ (n : ℕ), 0 < N n)
(hB : ∀ (n : ℕ), 0 < B n)
(hBinfty : Filter.Tendsto B Filter.atTop Filter.atTop)
(hNB : Filter.Tendsto (fun (n : ℕ) => B n / ↑(N n)) Filter.atTop (nhds 0))
(hsize :
∀ (c : ℝ),
0 < c →
c < 1 / μ₀ →
Filter.Tendsto (fun (n : ℕ) => (↑(μ n)).real {ω : Ω n | ↑(t n ω).size < c * ↑(N n)}) Filter.atTop (nhds 0))
{ν : MeasureTheory.ProbabilityMeasure C(↑unitInterval, ℝ)}
(hlim :
Filter.Tendsto (fun (n : ℕ) => (μ n).map fun (ω : Ω n) => (remarkDivisor μ₀ θ N B n)⁻¹ • (t n ω).paperContourFunction)
Filter.atTop (nhds ν))
:
Filter.Tendsto
(fun (n : ℕ) =>
(μ n).map fun (ω : Ω n) =>
MetricMeasure.RootedMeasuredGHSpace.scale (remarkDivisor μ₀ θ N B n)⁻¹ ⋯
(MetricMeasure.toRootedMeasuredGHSpace (rootedCompactMeasuredSpace (t n ω))))
Filter.atTop (nhds (ν.map Coding.rootedMeasuredGHSpace))
Rooted measured law convergence from the paper contour time convention, with the deterministic divisor of Remark 5.10.