On the x-coordinates of Pell equations which are rep-digits

被引:23
|
作者
Dossavi-Yovo, Appolinaire [1 ]
Luca, Florian [2 ]
Togbe, Alain [3 ]
机构
[1] Inst Math & Sci Phys, Porto Novo, Benin
[2] Univ Witwatersrand, Sch Math, Private Bag X3, ZA-2050 Johannesburg, South Africa
[3] Purdue Univ, Dept Math, North Cent 1401 S,US 421, Westville, IN 46391 USA
来源
PUBLICATIONES MATHEMATICAE-DEBRECEN | 2016年 / 88卷 / 3-4期
关键词
Pell equation; rep-digit; linear forms in complex and p-adic logarithms; FIBONACCI; REPDIGITS; SEQUENCES; NUMBERS;
D O I
10.5486/PMD.2016.7378
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For a positive integer d which is not a square, we show that there is at most one value of the positive integer x participating in the Pell equation x(2) - dy(2) = 1 which is a rep-digit, that is all its base 10 digits are equal, with a few exceptions in the pairs (d, x) which we determine.
引用
收藏
页码:381 / 399
页数:19
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