Repdigits as absolute value of difference between Lucas and Fibonacci numbers

In this paper, we investigate the Diophantine equation |Ln₁ − Fn₂| = d(10m − 1) / 9, where (Ln)n ≥ 0 and (Fn)n ≥ 0 are respectively Lucas and Fibonacci sequences, d ∈ {1, ..., 9} and m ≥ 1. All solutions of the aforementioned equation are provided.

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Publication Details

Journal
Gulf Journal of Mathematics
Published
2025-04-20
DOI
https://doi.org/10.56947/gjom.v19i2.2680
Primary Topic
Advanced Mathematical Theories and Applications
Type
article
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article

Repdigits as absolute value of difference between Lucas and Fibonacci numbers

Salifou Nikiéma, Charles Wend-Waoga Tougma
Gulf Journal of Mathematics
Advanced Mathematical Theories and Applications
article

Repdigits as absolute value of difference between Lucas and Fibonacci numbers

Salifou Nikiéma, Charles Wend-Waoga Tougma
article en

Abstract

In this paper, we investigate the Diophantine equation |Ln₁ − Fn₂| = d(10m − 1) / 9, where (Ln)n ≥ 0 and (Fn)n ≥ 0 are respectively Lucas and Fibonacci sequences, d ∈ {1, ..., 9} and m ≥ 1. All solutions of the aforementioned equation are provided.

Gulf Journal of MathematicsVol. 19(2)
Université Ouaga II (BF), Centre Hospitalier Universitaire Yalgado Ouédraogo (BF)
Openalex Percentile: Top 94%
Advanced Mathematical Theories and Applications
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Repdigits as absolute value of difference between Lucas and Fibonacci numbers — Salifou Nikiéma, Charles Wend-Waoga Tougma · Gulf Journal of Mathematics (2025) | TGRS Research Map | TGRS