Quadratic variation of martingales in Riesz spaces

被引:13
|
作者
Grobler, Jacobus J. [1 ]
Labuschagne, Coenraad C. A. [2 ,3 ]
Marraffa, Valeria [4 ]
机构
[1] North West Univ, Sch Comp Stat & Math Sci, Mmabatho, South Africa
[2] Univ Witwatersrand, Sch Computat & Appl Math, ZA-2050 Po Wits, South Africa
[3] Univ Johannesburg, Dept Finance & Investment Management, ZA-2006 Auckland Pk, South Africa
[4] Univ Palermo, Dipartimento Matemat & Informat, I-90123 Palermo, Italy
基金
新加坡国家研究基金会;
关键词
Austin's theorem; Martingale; Measure-free stochastic processes; Quadratic variation; Riesz space; Vector lattice; CONVERGENT MARTINGALES; PROPERTY;
D O I
10.1016/j.jmaa.2013.08.037
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We derive quadratic variation inequalities for discrete-time martingales, sub- and super-martingales in the measure-free setting of Riesz spaces. Our main result is a Riesz space analogue of Austin's sample function theorem, on convergence of the quadratic variation processes of martingales. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码:418 / 426
页数:9
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