Some Extensions of Fractional Brownian Motion and Sub-Fractional Brownian Motion Related to Particle Systems
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1. | Title | Title of document | Some Extensions of Fractional Brownian Motion and Sub-Fractional Brownian Motion Related to Particle Systems |
2. | Creator | Author's name, affiliation, country | Tomasz Bojdecki; Institute of Mathematics, University of Warsaw |
2. | Creator | Author's name, affiliation, country | Luis G Gorostiza; Centro de Investigacion y de Estudios Avanzados, Mexico |
2. | Creator | Author's name, affiliation, country | Anna Talarczyk; Institute of Mathematics, University of Warsaw |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | fractional Brownian motion; weighted fractional Brownian motion; bi-fractional Brownian motion; sub-fractional Brownian motion; negative sub-fractional Brownian motion; long-range dependence; particle system |
3. | Subject | Subject classification | 60G18; 60J80 |
4. | Description | Abstract | In this paper we study three self-similar, long-range dependence, Gaussian processes. The first one, with covariance $$ \int^{s\wedge t}_0 u^a [(t-u)^b+(s-u)^b]du, $$ parameters $a>-1$, $-1 < b\leq 1$, $|b|\leq 1+a$, corresponds to fractional Brownian motion for $a=0$, $-1 < b < 1$. The second one, with covariance $$ (2-h)\biggl(s^h+t^h-\frac{1}{2}[(s+t)^h +|s-t|^h]\biggr), $$ parameter $0 < h\leq 4$, corresponds to sub-fractional Brownian motion for $0 < h < 2 $. The third one, with covariance $$ -\left(s^2\log s + t^2\log t -\frac{1}{2}[(s+t)^2 \log (s+t) +(s-t)^2 \log |s-t|]\right), $$ is related to the second one. These processes come from occupation time fluctuations of certain particle systems for some values of the parameters. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | CONACyT (Mexico), MNiSW (Poland) |
7. | Date | (YYYY-MM-DD) | 2007-05-16 |
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/1272 |
10. | Identifier | Digital Object Identifier | 10.1214/ECP.v12-1272 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Communications in Probability; Vol 12 |
12. | Language | English=en | |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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