Published 2018-10-28
Keywords
- Squares,
- Lagrange theorem,
- representations by squares
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How to Cite
Sums of four or fewer squares. (2018). Scientia Series A: Mathematical Sciences, 28, 55-62. https://revistas.usm.cl/scientia/article/view/200
Abstract
A classical theorem of Lagrange states that every positive integer is the sum of four squares. Properties of the sets obtained by fixing three, two or one of these squares are discussed.
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