-unit equation in two variables and Padé approximations
arXiv:2211.14399 · doi:10.1142/S1793042123501191
Abstract
In this article, we use Padé approximations constructed for binomial functions, to give a new upper bound for the number of the solutions of the -unit equation. Combining explicit formulae of these Padé approximants with a simple argument relying on Mahler measure and on the local height, we refine the bound due to J.-H. Evertse.
13 pages