A Linear Time Algorithm for the Flip Distance between Plane Spanning Paths in Convex Point Sets
Year: 2025
Type: preprint
Abstract: We provide a linear time algorithm to determine the flip distance between two plane spanning paths on a point set in convex position. At the same time, we show that the happy edge property does not hold in this setting. This has to be seen in contrast to several results for reconfiguration problems where the absence of the happy edge property implies algorithmic hardness of the flip distance problem. Further, we show that our algorithm can be adapted for (1) compatible flips (2) local flips and (3) flips for plane spanning paths in simple polygons.
Source: arXiv (Cornell University)
DOI: 10.57717/cgt.v5i3.93
Authors: Aichholzer, Oswin, Dorfer, Joseph
Institution: Graz University of Technology
Language: English
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7127650177
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