We study the Ljunggren equation Y² + 1 = 2X⁴ using the "multiplication by 2" method of Chabauty.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-cm109-1-2,
author = {Konstantinos A. Draziotis},
title = {The Ljunggren equation revisited},
journal = {Colloquium Mathematicae},
volume = {107},
year = {2007},
pages = {9-11},
zbl = {1175.11017},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm109-1-2}
}
Konstantinos A. Draziotis. The Ljunggren equation revisited. Colloquium Mathematicae, Tome 107 (2007) pp. 9-11. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm109-1-2/