Large Deviation Inequalities for Noncommutative Martingales

Fuente: arXiv
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Autores principales: Jiao, Yong, Luo, Sijie, Zhou, Dejian
Formato: Preprint
Publicado: 2026
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author Jiao, Yong
Luo, Sijie
Zhou, Dejian
author_facet Jiao, Yong
Luo, Sijie
Zhou, Dejian
contents We establish noncommutative analogs of some well-known large deviation inequalities for noncommutative random variables. Firstly, for the noncommutative independent case, we characterize the uniformly exponential integrability of random variables in terms of large deviation inequalities. Secondly, for noncommutative martingale differences, we establish two deviation inequalities according to the exponential integrability and $L_{p}$-boundedness of the martingale differences, respectively. Finally, we establish a noncommutative version of Gordin's decomposition, which enables us to derive a noncommutative ergodic theorem via deviation inequalities for noncommutative martingales.
format Preprint
id arxiv_https___arxiv_org_abs_2604_04935
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Large Deviation Inequalities for Noncommutative Martingales
Jiao, Yong
Luo, Sijie
Zhou, Dejian
Operator Algebras
Functional Analysis
Probability
46L53, 46L52
We establish noncommutative analogs of some well-known large deviation inequalities for noncommutative random variables. Firstly, for the noncommutative independent case, we characterize the uniformly exponential integrability of random variables in terms of large deviation inequalities. Secondly, for noncommutative martingale differences, we establish two deviation inequalities according to the exponential integrability and $L_{p}$-boundedness of the martingale differences, respectively. Finally, we establish a noncommutative version of Gordin's decomposition, which enables us to derive a noncommutative ergodic theorem via deviation inequalities for noncommutative martingales.
title Large Deviation Inequalities for Noncommutative Martingales
topic Operator Algebras
Functional Analysis
Probability
46L53, 46L52
url https://arxiv.org/abs/2604.04935