Gibbs random fields with unbounded spins on unbounded degree graphs
| dc.creator | Kondratiev, Yuri | |
| dc.creator | Kozitsky, Yuri | |
| dc.creator | Pasurek, Tanja | |
| dc.date | 2009-04-21 | |
| dc.date.accessioned | 2026-07-07T13:06:49Z | |
| dc.date.available | 2026-07-07T13:06:49Z | |
| dc.description | Gibbs random fields corresponding to systems of real-valued spins (e.g. systems of interacting anharmonic oscillators) indexed by the vertices of unbounded degree graphs with a certain summability property are constructed. It is proven that the set of tempered Gibbs random fields is non-void and weakly compact, and that they obey uniform exponential integrability estimates. In the second part of the paper, a class of graphs is described in which the mentioned summability is obtained as a consequence of a property, by virtue of which vertices of large degree are located at large distances from each other. The latter is a stronger version of a metric property, introduced in [Bassalygo, L. A. and Dobrushin, R. L. (1986). \textrm{Uniqueness of a Gibbs field with a random potential--an elementary approach.}\textit{Theory Probab. Appl.} {\bf 31} 572--589]. | |
| dc.identifier | https://arxiv.org/abs/0904.3207 | |
| dc.identifier | http://arxiv.org/abs/0904.3207 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227899 | |
| dc.subject | Probability | |
| dc.subject | Mathematical Physics | |
| dc.subject | 60K35; 82B20; 05C07 | |
| dc.title | Gibbs random fields with unbounded spins on unbounded degree graphs | |
| dc.type | text |