General predictable compensation by increasing finite-box exhaustion.
See Bertoin, Lévy Processes, Chapter IV, and Kallenberg, Foundations of Modern Probability, Chapters 12 and 22.
theorem
BGW.StableTrees.excursion_compensation_predictable_general
{θ : ℝ}
(hθ : 1 < θ ∧ θ ≤ 2)
{H : (NNReal × Skorokhod.DLoc) × Excursion → ENNReal}
(hH : Measurable H)
:
General predictable compensation formula. For every H : (ℝ≥0 × DLoc) × Excursion → ℝ≥0∞
measurable for predictableSigma ⊗ Borel(Excursion), with μ_f = excursionPointMeasure f:
E ∫ H((x,f),e) μ_f(dx,de) = E ∫_0^∞ ∫ H((x,f),e) N(de) dx.
Proof route: π-λ argument on the generating rectangles (a,b] × F × A using
excursion_compensation_step (with Y = 1_F), then monotone class; no pointwise approximation
is needed.