Martingale Representation and a Simple Proof of Logarithmic Sobolev Inequalities on Path Spaces
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1. | Title | Title of document | Martingale Representation and a Simple Proof of Logarithmic Sobolev Inequalities on Path Spaces |
2. | Creator | Author's name, affiliation, country | Mireille Capitaine; Universite Paul-Sabatier |
2. | Creator | Author's name, affiliation, country | Elton P. Hsu; Northwestern University |
2. | Creator | Author's name, affiliation, country | Michel Ledoux; Universite Paul-Sabatier |
3. | Subject | Discipline(s) | Mathematics |
3. | Subject | Keyword(s) | Martingale representation, logarithmic Sobolev inequality, Brownian motion, Riemannian manifold |
3. | Subject | Subject classification | 58G32 |
4. | Description | Abstract | We show how the Clark-Ocone-Haussmann formula for Brownian motion on a compact Riemannian manifold put forward by S. Fang in his proof of the spectral gap inequality for the Ornstein-Uhlenbeck operator on the path space can yield in a very simple way the logarithmic Sobolev inequality on the same space. By an appropriate integration by parts formula the proof also yields in the same way a logarithmic Sobolev inequality for the path space equipped with a general diffusion measure as long as the torsion of the corresponding Riemannian connection satisfies Driver's total antisymmetry condition. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | |
7. | Date | (YYYY-MM-DD) | 1997-12-15 |
8. | Type | Status & genre | Peer-reviewed Article |
8. | Type | Type | |
9. | Format | File format | |
10. | Identifier | Uniform Resource Identifier | http://ecp.ejpecp.org/article/view/986 |
10. | Identifier | Digital Object Identifier | 10.1214/ECP.v2-986 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Communications in Probability; Vol 2 |
12. | Language | English=en | en |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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