{ "id": "1612.00917", "version": "v1", "published": "2016-12-03T03:14:09.000Z", "updated": "2016-12-03T03:14:09.000Z", "title": "Average Entropy of the Ranges for Simple Random Walks on Discrete Groups", "authors": [ "Xin-Xing Chen", "Jian-Sheng Xie", "Min-Zhi Zhao" ], "comment": "28 pages", "categories": [ "math.PR" ], "abstract": "Inspired by Benjamini et al (Ann. Inst. H. Poincar\\'e Probab. Stat. 2010) and Windisch (Electron. J. Probab. 2010), we consider the entropy of the random walk range formed by a simple random walk on a discrete group. It is shown in this setting the existence of a quantity which we call the average entropy of the range. The extreme values of this quantity are also discussed. An important consequence is that, the tail $\\sigma$-algebra formed by the $n$-step ranges is always trivial for a recurrent random walk.", "revisions": [ { "version": "v1", "updated": "2016-12-03T03:14:09.000Z" } ], "analyses": { "subjects": [ "60G50", "60J05" ], "keywords": [ "simple random walk", "discrete group", "average entropy", "recurrent random walk", "random walk range" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable" } } }