English

On the Diophantine equation N X^2 + 2^L 3^M = Y^N

Number Theory 2014-04-18 v2

Abstract

We prove that the Diophantine equation N X^2 + 2^L 3^M = Y^N has no solutions (N,X,Y,L,M) in positive integers with N > 1 and gcd(NX,Y) = 1, generalizing results of Luca, Wang and Wang, and Luca and Soydan. Our proofs use results of Bilu, Hanrot, and Voutier on defective Lehmer pairs.

Keywords

Cite

@article{arxiv.1304.6413,
  title  = {On the Diophantine equation N X^2 + 2^L 3^M = Y^N},
  author = {Eva G. Goedhart and Helen G. Grundman},
  journal= {arXiv preprint arXiv:1304.6413},
  year   = {2014}
}

Comments

"This is the author's version of a work that was accepted for publication in Journal of Number Theory. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication."