题目:Cramér Type Moderate Deviations for Martingales with Applications
报告人:范协铨 教授(东北大学秦皇岛分校)
地点:腾讯会议 473 370 441(密码:428756)
时间:2026年10月14日 星期三 10:00-11:00
Abstract:We present Cramér-type moderate deviation expansions for martingales whose differences satisfy a conditional Bernstein condition. We consider two ways of normalizing martingale sums: by the square root of their predictable quadratic variation and by their standard deviation. These results extend the classical Cramér moderate deviation theory to the martingale setting. Applications to elephant random walks and autoregressive processes are also discussed. The talk is based on joint work with Quansheng LIU, Ion GRAMA and Qi-Man SHAO.
报告人简介:范协铨,东北大学秦皇岛分校教授、数学与统计学院院长。主要从事概率论与数理统计方面的研究,研究兴趣包括鞅的偏差不等式、Cramér型中偏差、Berry–Esseen估计和自正则化极限理论等。发表SCI论文50余篇,主要论文发表于《Bernoulli》《Stochastic Processes and their Applications》《Annales de l'Institut Henri Poincaré, Probabilités et Statistiques》《Science China Mathematics》等期刊。先后主持国家自然科学基金项目2项,2017年获得天津市数学会青年学术奖一等奖。
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