English

On the congruence ax+by = 1 modulo xy

Number Theory 2009-09-29 v3

Abstract

We give bounds on the number of solutions to the Diophantine equation (X+1/x)(Y+1/y) = n as n tends to infinity. These bounds are related to the number of solutions to congruences of the form ax+by = 1 modulo xy.

Keywords

Cite

@article{arxiv.math/0308194,
  title  = {On the congruence ax+by = 1 modulo xy},
  author = {J. Brzezinski and W. Holsztynski and P. Kurlberg},
  journal= {arXiv preprint arXiv:math/0308194},
  year   = {2009}
}

Comments

LaTeX2e, 10 pages with 1 figure. Results in section 6 improved (upper bound on the average number of solutions given). Author list changed. Submitted

R2 v1 2026-07-22T16:57:04.344Z