Title: | Infinite queueing systems with tree structure (English) |

Author: | Fajfrová, Lucie |

Language: | English |

Journal: | Kybernetika |

ISSN: | 0023-5954 |

Volume: | 42 |

Issue: | 5 |

Year: | 2006 |

Pages: | 585-604 |

Summary lang: | English |

. | |

Category: | math |

. | |

Summary: | We focus on invariant measures of an interacting particle system in the case when the set of sites, on which the particles move, has a structure different from the usually considered set $\mathbb{Z}^d$. We have chosen the tree structure with the dynamics that leads to one of the classical particle systems, called the zero range process. The zero range process with the constant speed function corresponds to an infinite system of queues and the arrangement of servers in the tree structure is natural in a number of situations. The main result of this work is a characterisation of invariant measures for some important cases of site-disordered zero range processes on a binary tree. We consider the single particle law to be a random walk on the binary tree. We distinguish four cases according to the trend of this random walk for which the sets of extremal invariant measures are completely different. Finally, we shall discuss the model with an external source of customers and, in this context, the case of totally asymmetric single particle law on a binary tree. (English) |

Keyword: | invariant measures |

Keyword: | zero range process |

Keyword: | binary tree |

Keyword: | queues |

MSC: | 37L40 |

MSC: | 60K25 |

MSC: | 60K35 |

MSC: | 82B44 |

idZBL: | Zbl 1249.60194 |

idMR: | MR2283507 |

. | |

Date available: | 2009-09-24T20:19:01Z |

Last updated: | 2015-03-29 |

Stable URL: | http://hdl.handle.net/10338.dmlcz/135737 |

. | |

Reference: | [1] Andjel E. D.: Invariant measures for the zero range process.Ann. Probab. 10 (1982), 525–547 Zbl 0492.60096, MR 0659526, 10.1214/aop/1176993765 |

Reference: | [3] Harris T. E.: Nearest-neighbor Markov interaction processes on multidimensional lattice.Adv. in Math. 9 (1972), 66–89 MR 0307392, 10.1016/0001-8708(72)90030-8 |

Reference: | [4] Liggett T. M.: Interacting Particle Systems.Springer–Verlag, New York 1985 MR 0776231 |

Reference: | [5] Saada E.: Processus de zero-range avec particule marquee.Ann. Inst. H. Poincaré 26 (1990), 1, 5–17 Zbl 0703.60101, MR 1075436 |

Reference: | [6] Sethuraman S.: On extremal measures for conservative particle systems.Ann. Inst. H. Poincaré 37 (2001), 2, 139–154 Zbl 0981.60098, MR 1819121, 10.1016/S0246-0203(00)01062-1 |

Reference: | [7] Spitzer F.: Interaction of Markov processes.Adv. in Math. 5 (1970), 246–290 Zbl 0312.60060, MR 0268959, 10.1016/0001-8708(70)90034-4 |

Reference: | [8] Štěpán J.: A noncompact Choquet theorem.Comment. Math. Univ. Carolin. 25 (1984), 1, 73–89 Zbl 0562.60006, MR 0749117 |

Reference: | [9] Waymire E.: Zero-range interaction at Bose-Einstein speeds under a positive recurrent single particle law.Ann. Probab. 8 (1980), 3, 441–450 Zbl 0442.60095, MR 0573285, 10.1214/aop/1176994719 |

. |

Files | Size | Format | View |
---|---|---|---|

Kybernetika_42-2006-5_5.pdf | 975.2Kb | application/pdf |
View/ |