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Journal of Convex Analysis 29 (2022), No. 3, 731--747 Copyright Heldermann Verlag 2022 Best Approximative Properties of Exposed Faces N. Prakash Dept. of Mathematics, National Institute of Technology Tiruchirappalli, Trichy, Tamil Nadu, India prakashn@nitt.edu K. V. Sangeetha Dept. of Mathematics, National Institute of Technology Tiruchirappalli, Trichy, Tamil Nadu, India sangeekv@gmail.com Let X = c01(μ). We will show that the exposed face of the unit sphere of X is strongly proximinal and the corresponding metric projection map is Hausdorff metric continuous. Keywords: Proximinal, strongly proximinal, norm attaining functional, exposed face, Hausdorff metric continuity. MSC: 46B20, 41A50, 41A65. [ Fulltext-pdf (129 KB)] for subscribers only. |