Two counterexamples, addressing questions raised in cite{AD} and cite{PZ}, are provided. Both counterexamples are related to chaoses. Let $F_n=Y_n+Z_n$, where the random variables $Y_n$ and $Z_n$ belong to different chaoses of uniformly bounded degree. It may be that $F_noverset{a.s.}longrightarrow 0$, $F_noverset{L_{2+delta}}longrightarrow 0$ and $Eigl{sup_n,abs{F_n}^deltaigr}0$, and yet $Y_n$ fails to converge to 0 a.s.

Pratelli Luca, Rigo Pietro (2021). On the almost sure convergence of sums. STATISTICS & PROBABILITY LETTERS, 172, 1-5 [10.1016/j.spl.2021.109045].

On the almost sure convergence of sums

Rigo Pietro
2021

Abstract

Two counterexamples, addressing questions raised in cite{AD} and cite{PZ}, are provided. Both counterexamples are related to chaoses. Let $F_n=Y_n+Z_n$, where the random variables $Y_n$ and $Z_n$ belong to different chaoses of uniformly bounded degree. It may be that $F_noverset{a.s.}longrightarrow 0$, $F_noverset{L_{2+delta}}longrightarrow 0$ and $Eigl{sup_n,abs{F_n}^deltaigr}0$, and yet $Y_n$ fails to converge to 0 a.s.
2021
Pratelli Luca, Rigo Pietro (2021). On the almost sure convergence of sums. STATISTICS & PROBABILITY LETTERS, 172, 1-5 [10.1016/j.spl.2021.109045].
Pratelli Luca; Rigo Pietro
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/801963
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