ON A MARTINGALE CHARACTERIZATION OF 2-PARAMETER WIENER PROCESS

被引:2
|
作者
CABANA, EM
机构
[1] Universidad de la República, Centro de Matemática, Montevideo
关键词
martingales; string-martingales; Two-parameter Wiener process; vibrating string forced by noise;
D O I
10.1016/0167-7152(90)90084-K
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
A generalization of martingales, named string-martingales in this paper, is introduced for two-dimensional-parameter processes. The two-parameter standard Wiener process is then characterised as a strong-martingale with continuous paths, and an additional property which states that a sort of quadratic variation of the process is deterministic, and given by the Lebesque measure. © 1990.
引用
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页码:263 / 270
页数:8
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