Frontiers of Mathematics in China >
Hua’s theorem on five squares of primes
Received date: 30 Jan 2020
Accepted date: 04 Jul 2020
Published date: 15 Aug 2020
Copyright
We give an alternative proof of Hua’s theorem that each large N≡5 (mod 24) can be written as a sum of five squares of primes. The proof depends on an estimate of exponential sums involving the Möbius function.
Key words: Exponential sums; Hua’s theorem; Möbius function
Wenjia ZHAO . Hua’s theorem on five squares of primes[J]. Frontiers of Mathematics in China, 2020 , 15(4) : 835 -850 . DOI: 10.1007/s11464-020-0851-z
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