New Conditions on the Nagell-Ljunggren Equation xp−1​/x−1=yq

Citation:

Han CHEN,Preda MIH˘AILESCU.New Conditions on the Nagell-Ljunggren Equation xp−1​/x−1=yq[J].Chinese Annals of Mathematics B,2026,(2):389~412
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Authors:

Han CHEN; Preda MIH?AILESCU
Abstract: In this paper, the authors consider the equation xp?1/x?11=peyq, for distinct odd prime exponents p, q, and show that, for p>3, it has no solutions under the condition that q does not divide hp??, the minus part of the class number of the p-th cyclotomic field.

Keywords:

Nagell-Ljunggren conjecture  Diophantine equations  Class field theory

Classification:

11D61, 11R37
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