Helly's Theorems on Convex Domains and Tchebycheff's Approximation Problem
Helly's Theorems on Convex Domains and Tchebycheff's Approximation Problem
Professor Dresden called to our attention the following theorem : If S 1 , S 2 , … , S m are m line segments parallel to the y-axis, all of equal lengths, whose projections on the x-axis are equally spaced, and if we assume that a straight line can …