Nikodem, Kazimierz; Páles, Zsolt; Wąsowicz, Szymon Multifunctions with selections of convex and concave type. (English) Zbl 0973.26011 Math. Pannonica 11, No. 2, 249-260 (2000). Reviewer: Zoltán Boros (Debrecen) MSC: 26B25 26E25 54C65 PDFBibTeX XMLCite \textit{K. Nikodem} et al., Math. Pannonica 11, No. 2, 249--260 (2000; Zbl 0973.26011) Full Text: EuDML
Förg-Rob, Wolfgang; Nikodem, Kazimierz; Páles, Zsolt Separation by monotonic functions. (English) Zbl 0877.39022 Math. Pannonica 7, No. 2, 191-196 (1996). Reviewer: C.Alsina (Barcelona) MSC: 39B72 26A51 26E25 PDFBibTeX XMLCite \textit{W. Förg-Rob} et al., Math. Pannonica 7, No. 2, 191--196 (1996; Zbl 0877.39022) Full Text: EuDML
Baron, Karol; Matkowski, Janusz; Nikodem, Kazimierz A sandwich with convexity. (English) Zbl 0803.39011 Math. Pannonica 5, No. 1, 139-144 (1994). Reviewer: P.Talpalaru (Iaşi) MSC: 39B72 26A51 PDFBibTeX XMLCite \textit{K. Baron} et al., Math. Pannonica 5, No. 1, 139--144 (1994; Zbl 0803.39011) Full Text: EuDML