Asymptotic Entropy of Random Walks on Free Products
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1. | Title | Title of document | Asymptotic Entropy of Random Walks on Free Products |
2. | Creator | Author's name, affiliation, country | Lorenz A. Gilch; Graz University of Technology; Austria |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | Random Walks, Free Products, Asymptotic Entropy |
3. | Subject | Subject classification | 60J10; 28D20; 20E06 |
4. | Description | Abstract | Suppose we are given the free product $V$ of a finite family of finite or countable sets. We consider a transient random walk on the free product arising naturally from a convex combination of random walks on the free factors. We prove the existence of the asymptotic entropy and present three different, equivalent formulas, which are derived by three different techniques. In particular, we will show that the entropy is the rate of escape with respect to the Greenian metric. Moreover, we link asymptotic entropy with the rate of escape and volume growth resulting in two inequalities. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | Research supported by German Research Foundation (DFG) grant GI 746/1-1 |
7. | Date | (YYYY-MM-DD) | 2011-01-02 |
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/841 |
10. | Identifier | Digital Object Identifier | 10.1214/EJP.v16-841 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Journal of Probability; Vol 16 |
12. | Language | English=en | |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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