https://jasper-aa64.github.io/tags/multiplicative-functions/Recent content in Multiplicative-Functions on JasperHugoen-usTue, 28 Apr 2026 00:00:00 +0800https://jasper-aa64.github.io/posts/number-theory-2-multiplicative-functions/Tue, 28 Apr 2026 00:00:00 +0800https://jasper-aa64.github.io/posts/number-theory-2-multiplicative-functions/Multiplicative functions, single-point and linear-sieve evaluation; Möbius function, both forms of Möbius inversion with full derivations and examples; Dirichlet convolution, key identities, Du Jiao sieve; generalized Möbius inversion on posets.https://jasper-aa64.github.io/posts/number-theory-4-min25-du-jiao-sieve/Tue, 28 Apr 2026 00:00:00 +0800https://jasper-aa64.github.io/posts/number-theory-4-min25-du-jiao-sieve/Min_25 sieve: theory, two complete examples, Lagrange interpolation for power sums. Du Jiao sieve: template, P3768, GCD sum, LCM sum.