- Volume 29 Issue 4
In this paper, we introduce the concepts of the convexity hull and co-convex sets on preconvexity spaces. We study some properties for the co-convexity hull and characterize c-convex functions and c-concave functions by using the co-convexity hull and the convexity hull.
preconvexity;co-convex sets;co-convexity hull;c-convex function;c-concave function
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- p-PRECONVEX SETS ON PRECONVEXITY SPACES vol.30, pp.3, 2008, https://doi.org/10.5831/HMJ.2008.30.3.425