Nikodem, Kazimierz; Sadowska, Elżbieta; Wąsowicz, Szymon A note on separation by subadditive and sublinear functions. (English) Zbl 0978.39020 Ann. Math. Sil. 14, 33-39 (2000). The authors present necessary and sufficient conditions for separation by subadditive and sublinear functions. Reviewer: Elzbieta Sadowska-Owczorz (Bielsko-Biala) Cited in 3 Documents MSC: 39B72 Systems of functional equations and inequalities 39B82 Stability, separation, extension, and related topics for functional equations 20M15 Mappings of semigroups 26A51 Convexity of real functions in one variable, generalizations Keywords:separation theorem; subadditive function; sublinear function; semigroup PDFBibTeX XMLCite \textit{K. Nikodem} et al., Ann. Math. Sil. 14, 33--39 (2000; Zbl 0978.39020)