Das Umkugelproblem und lineare semiinfinite Optimierung. (The circumsphere problem and linear semifinite optimization)
Given a bounded pointset (in n-dimensional space) determine inequalities relating the radius R of the smallest ball covering A and the diameter of A. The author considers this as a linear semiinfinite optimization problem, and deduces Jungs inequality. He also considers a similar problem with the points restricted to the surface of a hemisphere. The method has application to other problems of this sort.
scientific article; zbMATH DE number 4129536