Hardy-Littlewood 1923 / Vinogradov refined. Generating-function decomposition into major + minor arcs. Used for Waring problem + Goldbach + ternary-Goldbach (Helfgott 2013).
Hardy-Littlewood 1923 / Vinogradov refined. Generating-function decomposition into major + minor arcs. Used for Waring problem + Goldbach + ternary-Goldbach (Helfgott 2013).