Markov chain approximations for transition densities of Lévy processes
Dublin Core | PKP Metadata Items | Metadata for this Document | |
1. | Title | Title of document | Markov chain approximations for transition densities of Lévy processes |
2. | Creator | Author's name, affiliation, country | Aleksandar Mijatovic; Imperial College London; United Kingdom |
2. | Creator | Author's name, affiliation, country | Matija Vidmar; University of Warwick; United Kingdom |
2. | Creator | Author's name, affiliation, country | Saul Jacka; University of Warwick; United Kingdom |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | Levy process, continuous-time Markov chain, spectral representation, convergence rates for semi-groups and transition densities |
3. | Subject | Subject classification | 60G51 |
4. | Description | Abstract | We consider the convergence of a continuous-time Markov chain approximation $X^h$, $h>0$, to an $\mathbb{R}^d$-valued Lévy process $X$. The state space of $X^h$ is an equidistant lattice and its $Q$-matrix is chosen to approximate the generator of $X$. In dimension one ($d=1$), and then under a general sufficient condition for the existence of transition densities of $X$, we establish sharp convergence rates of the normalised probability mass function of $X^h$ to the probability density function of $X$. In higher dimensions ($d>1$), rates of convergence are obtained under a technical condition, which is satisfied when the diffusion matrix is non-degenerate. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | Slovene Human Resources Development and Scholarship Fund |
7. | Date | (YYYY-MM-DD) | 2014-01-13 |
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/2208 |
10. | Identifier | Digital Object Identifier | 10.1214/EJP.v19-2208 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Journal of Probability; Vol 19 |
12. | Language | English=en | en |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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