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arXiv 1201.2629math.PR
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$G$ -鞅的一个完全表示定理

A Complete Representation Theorem for $G$-martingales

Shige Peng, Yongsheng Song, Jianfeng Zhang

摘要:

本文建立了$G$ -鞅的一个完全表示定理。与文献中已有的结果不同,我们给出了二阶项的存在唯一性,它对应于马尔可夫情形下的二阶导数。本文的主要内容是二阶项的一个新范数,它是基于Song [26]引入的一个算子。

英文摘要:

In this paper we establish a complete representation theorem for $G$-martingales. Unlike the existing results in the literature, we provide the existence and uniqueness of the second order term, which corresponds to the second order derivative in Markovian case. The main ingredient of the paper is a new norm for that second order term, which is based on an operator introduced by Song [26].

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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