The Maximum Number of Times the Same Distance Can Occur among the Vertices of a Convex n-gon Is O(nlogn)
Tài liệu tham khảo
Edelsbrunner, 1991, A lower bound on the number of unit distances between the points of a convex polygon, J. Combin. Theory Ser. A, 56, 312, 10.1016/0097-3165(91)90042-F