prime numbers;
sums of squares;
sieve methods;
circle method;
D O I:
暂无
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We show that the set of integers less than x which are not representable as the sum of three squares of primes but satisfy the natural congruence conditions has size O(x(27/32)), improving on earlier bounds of Harman and Kumchev.