The farthest point map on the 4-cube
摘要
We study the farthest point mapping on the boundary of the 4-cube with respect to the intrinsic metric, and its dynamics as a piecewise rational map. It is shown that its limit set is the union of the main diagonals of eight facets. If the source point is in the interior of a facet, its limit set is also in the interior of a facet.