相关期刊:《北京师范大学学报(自然科学版)》《Wuhan University Journal of Natural Sciences》《山东大学学报(理学版)》《Transactions of Nanjing University of Aeronautics and Astronautics》更多>>
Supported by the National Natural Science Foundation of China(10171076);Supported by the Scientific and Technical Committee Foundation of Shanghai(03JC14027)
To obtain a better Vinogradov's bound, assistant function with two or three zeros and all Dirichlet's characters has been evaluated. Assistant function g(X1,X2,X3,X4)with four zeros and all nonprincipal characters but...