On the distribution of certain Pisot numbers
| dc.contributor.author | Zaimi, Toufik | |
| dc.date.accessioned | 2022-04-28T03:21:36Z | |
| dc.date.available | 2022-04-28T03:21:36Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | A Pisot number θ is said to be simple if the beta-expansion of its fractional part, in base θ, is finite. Let P be the set of such numbers, and S \ P be the complement of P in the set S of Pisot numbers. We show several results about the derived sets of P and of S \P. A Pisot number θ, with degree greater than 1, is said to be strong, if it has a proper real positive conjugate which is greater than the modulus of the remaining conjugates of θ. The set, say X, of such numbers has been defined by Boyd (1993) [5], and is contained in S \ P. We also prove that the infimum of the j -th derived set of X, where j runs through the set of positive rational integers, is at most j + 2. ⃝⃝c 2012 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved. | ar |
| dc.identifier.uri | http://hdl.handle.net/123456789/13066 | |
| dc.language.iso | en | ar |
| dc.publisher | Selsevier | ar |
| dc.subject | Beta-expansion | ar |
| dc.subject | Pisot numbers | ar |
| dc.subject | Beta-numbers | ar |
| dc.title | On the distribution of certain Pisot numbers | ar |
| dc.type | Article | ar |
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