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Title: On repdigits as product of $k$-Fibonacci and $k$-Lucas numbers (English)
Author: Seffah, Safia
Author: Rihane, Salah Eddine
Author: Togbé, Alain
Language: English
Journal: Mathematica Bohemica
ISSN: 0011-4642
ISSN: 0862-7959 (print)
ISSN: 2464-7136 (online)
Volume: 151
Issue: 1
Year: 2026
Pages: 29-55
Summary lang: English
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Category: math
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Summary: For an integer $k\geq 2$, let $(F_{n}^{(k)})_{n\geq -(k-2)}$, $(L_{n}^{(k)})_{n \geq -(k-2)}$ be $k$-Fibonacci and $k$-Lucas sequences, respectively. For these sequences the first $k$ terms are $0,\ldots ,0,1$ and $0,\ldots ,0,2,1$, respectively, and each term afterwards is the sum of the preceding $k$ terms. In this paper, we determine all possibilities such that $F_{n}^{(k)} L_{m}^{(k)}$ can represent a repdigit. (English)
Keyword: $k$-Fibonacci numbers
Keyword: $k$-Lucas numbers
Keyword: repdigits
Keyword: linear form in logarithms
Keyword: reduction method
MSC: 11B39
MSC: 11J86
DOI: 10.21136/MB.2025.0035-24
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Date available: 2026-02-19T13:51:45Z
Last updated: 2026-02-19
Stable URL: http://hdl.handle.net/10338.dmlcz/153385
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