Document Type
Lecture
Publication Date
10-24-2008
Abstract
Lagrange's four-square Theorem states that every positive integer can be expressed as the sum of four squares of integers. It was first proved in 1770 by Lagrange (and named after him much later). In this talk, we begin with some preliminary results in q-series and then deduce four-square Theorem using an elementary approach. Our proof was first given by Michael Hirschhorn.
Relational Format
presentation
Recommended Citation
Cao, Zhu, "A Proof of Lagrange’s Four-Square Theorem" (2008). Algebra/Number Theory Seminar. 53.
https://egrove.olemiss.edu/math_algebra_number_theory/53
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