Chapitre 1. Introduction 50 Théorème central limite (TCL) Herrndorf (1984) a montré le TCL suivant pour un processus α-mélangeant Théorème 1.13. Soit X = (Xt) un processus centré tel que supXt2+ν < ∞ <strong>et</strong> t ∞ k=0 {αX(k)} ν 2+ν < ∞ pour un ν > 0. Si σ2 = limn→∞ Var n−1/2n t=1Xt existe <strong>et</strong> est non nulle, alors n −1/2 n t=1 Xt d → N 0,σ 2 . Ce résultat aussi peut être directement étendu à un processus vectoriel.
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