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Journal of Convex Analysis 26 (2019), No. 3, 773--784 Copyright Heldermann Verlag 2019 The Plasticity of Non-Overlapping Convex Sets in R2 Anastasios N. Zachos Department of Mathematics, University of Patras, 26500 Rion, Greece azachos@gmail.com We study a generalization of the weighted Fermat-Torricelli problem in the plane, which is derived by replacing vertices of a convex polygon by 'small' closed convex curves with weights being positive real numbers on the curves, we also study its generalized inverse problem. Our solution of the problems is based on the first variation formula of the length of line segments that connect the weighted Fermat-Torricelli point with its projections onto given closed convex curves. We find the Keywords: Fermat-Torricelli problem, convex, curve, variation, inverse problem, plasticity of non-overlapping closed convex sets. MSC: 51E10, 51N20, 51P05, 70E17, 70F15, 70G75, 93B27. [ Fulltext-pdf (181 KB)] for subscribers only. |