O(n^4 log n)时间内计算多边形区域的测地直径
计算几何
2011-06-01 v2 数据结构与算法
摘要
我们表明,具有n个顶点的多边形区域的测地直径可以通过考虑O(n^3)个候选直径端点,在O(n^4 log n)时间内计算得出;这些端点是该区域顶点最短路径地图覆盖图顶点的一个子集。
引用
@article{arxiv.1006.1998,
title = {Geodesic diameter of a polygonal domain in O(n^4 log n) time},
author = {Mikko Koivisto and Valentin Polishchuk},
journal= {arXiv preprint arXiv:1006.1998},
year = {2011}
}
备注
NOTE: It has turned out that, unfortunately, Lemma 2 does not hold, which renders the main result incorrect