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arXiv 2103.13690math.PR
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关于矩阵鞅的Bernstein型指数不等式

On Bernstein Type Exponential Inequalities for Matrix Martingales

Zijie Tian

摘要:

本文得到了平方可积矩阵值离散时间鞅的Bernstein集中不等式。利用Lieb的理论和Bernstein的条件,可以构造出一个合适的上鞅.我们的证明主要是基于这个新的指数上鞅,弗里德曼的方法,和Doob的停止定理。我们的结果可以被视为Tropp工作的扩展(ECP,2012)。

英文摘要:

In this work, Bernstein's concentration inequalities for squared integrable matrix-valued discrete-time martingales are obtained. Based on Lieb's theory and Bernstein's condition, a suitable supermartingale can be constructed. Our proof is largely based on this new exponential supermartingale, Freedman's method, and Doob's stopping theorem. Our result can be regarded as an extension of Tropp's work (ECP, 2012).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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