The Ljunggren equation revisited
Volume 109 / 2007
Colloquium Mathematicum 109 (2007), 9-11
MSC: 11D25, 11G05, 11Y50.
DOI: 10.4064/cm109-1-2
Abstract
We study the Ljunggren equation $Y^{2}+1=2X^{4}$ using the “multiplication by 2” method of Chabauty.
