Zhang, Yin; Guo, Qi Lipschitz-continuity of spherically convex functions. (English) Zbl 1517.26008 Acta Math. Sin., Engl. Ser. 39, No. 2, 363-374 (2023). Reviewer: Sorin-Mihai Grad (Paris) MSC: 26B05 26B25 52A55 PDFBibTeX XMLCite \textit{Y. Zhang} and \textit{Q. Guo}, Acta Math. Sin., Engl. Ser. 39, No. 2, 363--374 (2023; Zbl 1517.26008) Full Text: DOI
Guo, Qi; Peng, Yanling Spherically convex sets and spherically convex functions. (English) Zbl 1455.52007 J. Convex Anal. 28, No. 1, 103-122 (2021). MSC: 52A55 52A20 52A35 52A41 PDFBibTeX XMLCite \textit{Q. Guo} and \textit{Y. Peng}, J. Convex Anal. 28, No. 1, 103--122 (2021; Zbl 1455.52007) Full Text: Link
Breen, Marilyn Clear visibility and sets which are almost starshaped. (English) Zbl 0521.52007 Proc. Am. Math. Soc. 91, 607-610 (1984). MSC: 52A30 52A10 PDFBibTeX XMLCite \textit{M. Breen}, Proc. Am. Math. Soc. 91, 607--610 (1984; Zbl 0521.52007) Full Text: DOI
Duchet, P.; Meyniel, H. Ensemble convexes dans les graphes. I: Théoremes de Helly et de Radon pour graphes et surfaces. (French) Zbl 0523.05031 Eur. J. Comb. 4, 127-132 (1983). MSC: 05C10 52A35 PDFBibTeX XMLCite \textit{P. Duchet} and \textit{H. Meyniel}, Eur. J. Comb. 4, 127--132 (1983; Zbl 0523.05031) Full Text: DOI
Lay, Steven R. Separation by cylindrical surfaces. (English) Zbl 0257.52009 Proc. Am. Math. Soc. 36, 224-228 (1972). MSC: 52A20 52A35 PDFBibTeX XMLCite \textit{S. R. Lay}, Proc. Am. Math. Soc. 36, 224--228 (1972; Zbl 0257.52009) Full Text: DOI