Moments of recurrence times for Markov chains
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1. | Title | Title of document | Moments of recurrence times for Markov chains |
2. | Creator | Author's name, affiliation, country | Frank Aurzada; TU Berlin |
2. | Creator | Author's name, affiliation, country | Hanna Döring; TU Berlin |
2. | Creator | Author's name, affiliation, country | Marcel Ortgiese; TU Berlin |
2. | Creator | Author's name, affiliation, country | Michael Scheutzow; TU Berlin |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | Discrete time Markov chain, recurrence time, generalized moment |
3. | Subject | Subject classification | 60J10 |
4. | Description | Abstract | We consider moments of the return times (or first hitting times) in an irreducible discrete time discrete space Markov chain. It is classical that the finiteness of the first moment of a return time of one state implies the finiteness of the first moment of the first return time of any other state. We extend this statement to moments with respect to a function $f$, where $f$ satisfies a certain, best possible condition. This generalizes results of K.L. Chung (1954) who considered the functions $f(n)=n^p$ and wondered "[...] what property of the power $n^p$ lies behind this theorem [...]" (see Chung (1967), p. 70). We exhibit that exactly the functions that do not increase exponentially - neither globally nor locally - fulfill the above statement. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | |
7. | Date | (YYYY-MM-DD) | 2011-06-08 |
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/1632 |
10. | Identifier | Digital Object Identifier | 10.1214/ECP.v16-1632 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Communications in Probability; Vol 16 |
12. | Language | English=en | |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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