Work

On the Diophantine equation π‘₯³±𝑦³=π‘Ž^{π‘˜}±𝑏^{π‘˜}

Year: 2026
Type: article
Abstract: In this note we consider the title Diophantine equation from both a theoretical as well as experimental point of view. In particular, we prove that for k = 4 , 6 k=4, 6 and each choice of the signs our equation has infinitely many coprime positive integer solutions ( x , y , a , b ) (x, y, a, b) such that no partial sum in the expression x 3 Β± y 3 βˆ’ ( a k Β± b k ) x^3 \pm y^3-(a^k \pm b^k) vanishes. The same is true for each k β‰’ 0 ( mod 4 ) k\not \equiv 0\pmod {4} and the equation x 3 Β± y 3 = a k βˆ’ b k x^3\pm y^3=a^k-b^k . For k = 5 , 7 k=5, 7 and all choices of the signs we computed all coprime positive integer solutions ( x , y , a , b ) (x, y, a, b) of x 3 Β± y 3 = a k + b k x^3\pm y^3=a^k+b^k
Author: Maciej Ulas
Language: English
Open Access status: green
OpenAlex ID: W7124446839
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Cites: 6
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