Ren, Xiumin; Tsang, Kaiman Waring-Goldbach problem for unlike powers. II. (Chinese. English summary) Zbl 1121.11312 Acta Math. Sin., Chin. Ser. 50, No. 1, 175-182 (2007). Summary: In this paper, we are concerned with Waring-Goldbach problems for unlike powers. It is proved that with at most \(O(N^{{47\over48}+\varepsilon})\) exceptions, all even positive integers up to \(N\) are expressible in the form \(p^2_2+p^3_3+p^4_4+p^5_5\). Cited in 1 ReviewCited in 6 Documents MSC: 11P32 Goldbach-type theorems; other additive questions involving primes 11P05 Waring’s problem and variants 11P55 Applications of the Hardy-Littlewood method Keywords:Waring-Goldbach problem; circle method; exceptional set Citations:Zbl 1128.11043 PDF BibTeX XML Cite \textit{X. Ren} and \textit{K. Tsang}, Acta Math. Sin., Chin. Ser. 50, No. 1, 175--182 (2007; Zbl 1121.11312) OpenURL