Martingale Property and Capacity under G-Framework
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1. | Title | Title of document | Martingale Property and Capacity under G-Framework |
2. | Creator | Author's name, affiliation, country | Jing Xu; School of Economics and Business Administration; China |
2. | Creator | Author's name, affiliation, country | Bo Zhang; School of Statistics Renmin University of China; China |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | G-Brownian motion;G-expectation;Martingale characterization;Capacity |
3. | Subject | Subject classification | 60H05;60H10 |
4. | Description | Abstract | The main purpose of this article is to study the symmetric martingale property and capacity defined by G-expectation introduced by Peng (cf. http://arxiv.org/PS_cache/math/pdf/0601/0601035v2.pdf) in 2006. We show that the G-capacity can not be dynamic, and also demonstrate the relationship between symmetric G-martingale and the martingale under linear expectation. Based on these results and path-wise analysis, we obtain the martingale characterization theorem for G Brownian motion without Markovian assumption. This theorem covers the Levy's martingale characterization theorem for Brownian motion, and it also gives a different method to prove Levy's theorem. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | |
7. | Date | (YYYY-MM-DD) | 2010-12-03 |
8. | Type | Status & genre | Peer-reviewed Article |
8. | Type | Type | |
9. | Format | File format | |
10. | Identifier | Uniform Resource Identifier | http://ejp.ejpecp.org/article/view/832 |
10. | Identifier | Digital Object Identifier | 10.1214/EJP.v15-832 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Journal of Probability; Vol 15 |
12. | Language | English=en | |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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