Title
Bottleneck detour tree of points on a path.
Abstract
Every pair of points lying on a polygonal path P in the plane has a detour associated with it, which is the ratio between their distance along the path and their Euclidean distance. Given a set S of points along the path, this information can be encoded in a weighted complete graph on S. Among all spanning trees on this graph, a bottleneck spanning tree is one whose maximum edge weight is minimum. We refer to such a tree as a bottleneck detour tree of S. In other words, a bottleneck detour tree of S is a spanning tree in which the maximum detour (with respect to the original path) between pairs of adjacent points is minimum. We show how to find a bottleneck detour tree in expected O(nlog3⁡n+m) time, where P consists of m edges and |S|=n.
Year
DOI
Venue
2019
10.1016/j.comgeo.2019.01.005
Computational Geometry
Keywords
Field
DocType
Polygonal path,Detour,Bottleneck spanning tree,Randomized algorithm
Discrete mathematics,Complete graph,Graph,Bottleneck,Polygon,Combinatorics,Euclidean distance,Spanning tree,Mathematics
Journal
Volume
ISSN
Citations 
79
0925-7721
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Greg Aloupis120026.50
Paz Carmi232143.14
Lilach Chaitman-Yerushalmi3164.72
Matthew J. Katz422519.92
Stefan Langerman5831101.66