Tangent Spheres and Triangle Centers
度量几何
2010-01-21 v1
摘要
Any four mutually tangent spheres in R^3 determine three coincident lines through opposite pairs of tangencies. As a consequence, we define two new triangle centers.
引用
@article{arxiv.math/9909152,
title = {Tangent Spheres and Triangle Centers},
author = {David Eppstein},
journal= {arXiv preprint arXiv:math/9909152},
year = {2010}
}
备注
3 pages, 1 figure