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A simple proof of Jacobi's four-square theorem
Published online by Cambridge University Press: 09 April 2009
Abstract
A celebrated result, due to Jacobi, says that the number of representations of the positive integer n as a sum of four squares is equal to eight times the sum of the divisors of n which are not divisible by 4. We give a new and simple proof of this result which depends only on Jacobi's triple product identity.
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- Copyright © Australian Mathematical Society 1982
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