Probabilistic and deterministic averaging
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- by N. H. Bingham and Charles M. Goldie PDF
- Trans. Amer. Math. Soc. 269 (1982), 453-480 Request permission
Abstract:
Let $\{ {S_n}\}$ be a random walk whose step distribution has positive mean $\mu$ and an absolutely continuous component. For any bounded measurable function $f$, a Marcinkiewicz-Zygmund strong law in an $r$-quick version (a ’Lai strong law’) is proved for $f({S_n})$, assuming existence of a suitable higher moment of the step distribution. This is extended to show ${n^{ - \alpha }}\{ \sum \nolimits _1^n {f({S_k})} - \int _0^n {f(\mu t)dt\} \to 0}$ ($r$-quickly). These results remain true when the step distribution is lattice, provided $f$ is constant between lattice points. Certain intermediate results on renewal theory, mixing, local limit theory, ladder height, and a strong law of Lai for mixing random variables are of independent interest.References
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Additional Information
- © Copyright 1982 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 269 (1982), 453-480
- MSC: Primary 60F15; Secondary 40G05, 60K05
- DOI: https://doi.org/10.1090/S0002-9947-1982-0637702-1
- MathSciNet review: 637702