{ "id": "1804.10235", "version": "v1", "published": "2018-04-26T18:33:14.000Z", "updated": "2018-04-26T18:33:14.000Z", "title": "On substitution tilings and Delone sets without finite local complexity", "authors": [ "Jeong-Yup Lee", "Boris Solomyak" ], "comment": "33 pages, 3 figures", "categories": [ "math.DS" ], "abstract": "We consider substitution tilings and Delone sets without the assumption of finite local complexity (FLC). We first give a sufficient condition for tiling dynamical systems to be uniquely ergodic and a formula for the measure of cylinder sets. We then obtain several results on their ergodic-theoretic properties, notably absence of strong mixing and conditions for existence of eigenvalues, which have number-theoretic consequences. In particular, if the set of eigenvalues of the expansion matrix is totally non-Pisot, then the tiling dynamical system is weakly mixing. Further, we define the notion of rigidity for substitution tilings and demonstrate that the result of [Lee-Solomyak (2012)] on the equivalence of four properties: relatively dense discrete spectrum, being not weakly mixing, the Pisot family, and the Meyer set property, extends to the non-FLC case, if we assume rigidity instead.", "revisions": [ { "version": "v1", "updated": "2018-04-26T18:33:14.000Z" } ], "analyses": { "subjects": [ "37B50", "52C23" ], "keywords": [ "finite local complexity", "substitution tilings", "delone sets", "tiling dynamical system", "meyer set property" ], "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable" } } }