On the Delone property of (−β)-integers
The (−β)-integers are natural generalisations of the β-integers, and thus of the integers, for negative real bases. They can be described by infinite words which are fixed points of anti-morphisms. We show that they are not necessarily uniformly discrete and relatively dense in the real numbers.
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Format: | Article |
Language: | English |
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Open Publishing Association
2011-08-01
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Series: | Electronic Proceedings in Theoretical Computer Science |
Online Access: | http://arxiv.org/pdf/1108.3640v1 |
_version_ | 1811248539594915840 |
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author | Wolfgang Steiner |
author_facet | Wolfgang Steiner |
author_sort | Wolfgang Steiner |
collection | DOAJ |
description | The (−β)-integers are natural generalisations of the β-integers, and thus of the integers, for negative real bases. They can be described by infinite words which are fixed points of anti-morphisms. We show that they are not necessarily uniformly discrete and relatively dense in the real numbers. |
first_indexed | 2024-04-12T15:29:52Z |
format | Article |
id | doaj.art-0a515baf0e3c418e8c88a12683f25480 |
institution | Directory Open Access Journal |
issn | 2075-2180 |
language | English |
last_indexed | 2024-04-12T15:29:52Z |
publishDate | 2011-08-01 |
publisher | Open Publishing Association |
record_format | Article |
series | Electronic Proceedings in Theoretical Computer Science |
spelling | doaj.art-0a515baf0e3c418e8c88a12683f254802022-12-22T03:27:08ZengOpen Publishing AssociationElectronic Proceedings in Theoretical Computer Science2075-21802011-08-0163Proc. WORDS 201124725610.4204/EPTCS.63.31On the Delone property of (−β)-integersWolfgang SteinerThe (−β)-integers are natural generalisations of the β-integers, and thus of the integers, for negative real bases. They can be described by infinite words which are fixed points of anti-morphisms. We show that they are not necessarily uniformly discrete and relatively dense in the real numbers.http://arxiv.org/pdf/1108.3640v1 |
spellingShingle | Wolfgang Steiner On the Delone property of (−β)-integers Electronic Proceedings in Theoretical Computer Science |
title | On the Delone property of (−β)-integers |
title_full | On the Delone property of (−β)-integers |
title_fullStr | On the Delone property of (−β)-integers |
title_full_unstemmed | On the Delone property of (−β)-integers |
title_short | On the Delone property of (−β)-integers |
title_sort | on the delone property of β integers |
url | http://arxiv.org/pdf/1108.3640v1 |
work_keys_str_mv | AT wolfgangsteiner onthedelonepropertyofbintegers |