{ "id": "1705.03138", "version": "v1", "published": "2017-05-09T01:23:51.000Z", "updated": "2017-05-09T01:23:51.000Z", "title": "Characterization for entropy of shifts of finite type on Cayley trees", "authors": [ "Jung-Chao Ban", "Chih-Hung Chang" ], "categories": [ "math.DS" ], "abstract": "The notion of tree-shifts constitutes an intermediate class in between one-sided shift spaces and multidimensional ones. This paper proposes an algorithm for computing of the entropy of a tree-shift of finite type. Meanwhile, the entropy of a tree-shift of finite type is $\\dfrac{1}{p} \\ln \\lambda$ for some $p \\in \\mathbb{N}$, where $\\lambda$ is a Perron number. This extends Lind's work on one-dimensional shifts of finite type. As an application, the entropy minimality problem is investigated, and we obtain the necessary and sufficient condition for a tree-shift of finite type being entropy minimal with some additional conditions.", "revisions": [ { "version": "v1", "updated": "2017-05-09T01:23:51.000Z" } ], "analyses": { "subjects": [ "37E05", "11A63" ], "keywords": [ "finite type", "cayley trees", "characterization", "entropy minimality problem", "extends linds work" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }