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An upper bound for the number of solutions of ternary purely exponential diophantine equations

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Abstract Let a , b , c be fixed coprime positive integers with min ⁡ { a , b , c } > 1 . In this paper, combining the… Click to show full abstract

Abstract Let a , b , c be fixed coprime positive integers with min ⁡ { a , b , c } > 1 . In this paper, combining the Gel'fond–Baker method with an elementary approach, we prove that if max ⁡ { a , b , c } > 5 × 10 27 , then the equation a x + b y = c z has at most three positive integer solutions ( x , y , z ) .

Keywords: bound number; solutions ternary; number; upper bound; number solutions; ternary purely

Journal Title: Journal of Number Theory
Year Published: 2018

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