Robuta

https://journals.us.edu.pl/index.php/AMSIL/article/view/14125?articlesBySimilarityPage=5 A note on separation by subadditive and sublinear functions | Vol. 14 (2000) | Annales Mathematicae... a note separation subadditive sublinear functions https://optimization-online.org/tag/subadditive-duality/ subadditive duality – Optimization Online subadditive duality optimization online