{ "id": "1212.1320", "version": "v2", "published": "2012-12-06T13:21:48.000Z", "updated": "2014-01-08T16:02:16.000Z", "title": "Complexity as a homeomorphism invariant for tiling spaces", "authors": [ "Antoine Julien" ], "comment": "Added a the result on the repetitivity function; rearranged some parts of the article; corrected a few minor mistakes. What was previously the last part was shrunk to an outlook. Links to deformations, groupoids and groupoid cohomology will be fully addressed in a future paper", "categories": [ "math.DS" ], "abstract": "It is proved that whenever two aperiodic repetitive tilings with finite local complexity have homeomorphic tiling spaces, their associated complexity functions are asymptotically equivalent in a certain sense (which implies, if the complexity is polynomial, that the exponent of the leading term is preserved by homeomorphism). This theorem can be reworded in terms of $d$-dimensional infinite words: if two $\\mathbb{Z}^d$-subshifts (with the same conditions as above) are flow equivalent, their complexity functions are equivalent. An analogue theorem is proved for the repetitivity function, which is a quantitative measure of the recurrence of orbits in the tiling space. How this result relates to the theory of tilings deformations is outlined in the last part.", "revisions": [ { "version": "v2", "updated": "2014-01-08T16:02:16.000Z" } ], "analyses": { "subjects": [ "37B50", "37B10" ], "keywords": [ "homeomorphism invariant", "finite local complexity", "dimensional infinite words", "tilings deformations", "homeomorphic tiling spaces" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1212.1320J" } } }