Robuta

https://nntdm.net/volume-31-2025/number-2/289-298/ Identical equations for multiplicative functions | Notes on Number Theory and Discrete Mathematics multiplicative functions number theory discrete mathematics identical equations https://catalogue.archives.ncbs.res.in/repositories/2/archival_objects/10418 Some current problems in multiplicative number theory, Undated | Archives at NCBS multiplicative number theory current problems undated archives