L'\'equation diophantienne $ax^2-by^2=1$
Lionel Ponton

TL;DR
This paper introduces an effective method for solving the Diophantine equation ax^2 - by^2 = 1, utilizing continued fraction expansions of quadratic irrationals, with applications to generalized Pell-Fermat equations.
Contribution
It presents a novel approach based on continued fractions of quadratic irrationals to solve the specific Diophantine equation and extends this method to generalized Pell-Fermat equations.
Findings
Effective solution method for ax^2 - by^2 = 1
Complete description of continued fraction expansions used
Application to generalized Pell-Fermat equations
Abstract
On propose une m\'ethode de r\'esolution effective de l'\'equation diophantienne o\`u et sont des entiers naturels non nuls et premiers entre eux. Cette m\'ethode s'appuie sur le d\'eveloppement en fraction continu\'ee de certains nombres irrationnels quadratiques que l'on d\'ecrit compl\`etement. On commence par utiliser ces d\'eveloppements pour r\'esoudre certaines \'equations de Pell-Fermat g\'en\'eralis\'ees avant d'appliquer \`a l'\'equation les r\'esultats obtenus.
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Taxonomy
TopicsAlgebraic Geometry and Number Theory · Polynomial and algebraic computation
