MAGIC SQUARES OF PERFECT SQUARES AND PELL NUMBERS
Order three magic squares of distinct squared integers are studied. We show that such a magic square is not possible if the smallest entry is the square of a prime number, or unity. A method for generating all arithmetic progressions of three squared integers whose smallest term is the square of a prime or unity is presented via a set of linear transformation matrices involving the Pell numbers.
magic square, Pell numbers.
Received: September 2, 2024; Revised: September 20, 2024; Accepted: October 10, 2024; Published: October 22, 2024
How to cite this article: D. N. Coumbe, Magic squares of perfect squares and Pell numbers, JP Journal of Algebra, Number Theory and Applications 63(6) (2024), 587-614. https://doi.org/10.17654/0972555524032
This Open Access Article is Licensed under Creative Commons Attribution 4.0 International License
References:[1] C. Boyer, Some notes on the magic squares of squares problem, Math. Intelligencer 27(2) (2005), 52-64.[2] Leonhard Euler, On magic squares, 2005. arXiv:math/0408230v6[math.CO].[3] Andrew Bremner, On squares of squares, Acta Arith. 88(3) (1999), 289-297.[4] O. Cain, Gaussian integers, rings, finite fields, and the magic square of squares, 2019. arXiv:1908.03236v2[math.RA].[5] L. Sallows, The lost theorem, Math. Intelligencer 19(4) (1997), 51-54.[6] L. E. Dickson, History of the Theory of Numbers, Volume II: Diophantine Analysis, Dover Books on Mathematics, Dover Publications, 2005.[7] L. Morgenstern, magic square of 7 squares study 1, 2006.http://web.archive.org/web/20150511182628/http://home.earthlink.net/~morgenstern/magic/apstruc.htm.[8] D. Weisenberg, Some thoughts on the 3 × 3 magic square of squares problem, Rose-Hulman Undergraduate Mathematics Journal 24(1) (2023), Article 7.[9] L. Rabern, Properties of magic squares of squares, Rose-Hulman Undergraduate Mathematics Journal 4(1) (2003), Article 3.[10] A. Várilly-Alvarado, The geometric disposition of Diophantine equations, Notices Amer. Math. Soc. 68(8) (2021), 1291-1300.