August 2021 On solving a binary quadratic Diophantine equation
Keith R. Matthews, John P. Robertson
Rocky Mountain J. Math. 51(4): 1369-1385 (August 2021). DOI: 10.1216/rmj.2021.51.1369
Abstract

We look at methods for solving the Diophantine equation ax2+bxy+cy2+dx+ey+f=0 for which Δ=b24ac>0 and Δ is not a square. The methods we use transform this equation to one of the form AX2+BXY+CY2=N. We give upper limits on the number of solutions to the latter equation that need to be reviewed to determine all solutions to the original equation. These upper limits are substantially smaller than those generally given in the literature. We also discuss ways to compactly represent all solutions to the original equation.

Copyright © 2021 Rocky Mountain Mathematics Consortium
Keith R. Matthews and John P. Robertson "On solving a binary quadratic Diophantine equation," Rocky Mountain Journal of Mathematics 51(4), 1369-1385, (August 2021). https://doi.org/10.1216/rmj.2021.51.1369
Received: 23 November 2020; Accepted: 22 December 2020; Published: August 2021
JOURNAL ARTICLE
17 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

Vol.51 • No. 4 • August 2021
Back to Top