Flip** non-crossing spanning trees

HB Bjerkevik, L Kleist, T Ueckerdt… - Proceedings of the 2025 …, 2025 - SIAM
For a set P of n points in general position in the plane, the flip graph F (P) has a vertex for
each noncrossing spanning tree on P and an edge between any two spanning trees that can …

On the connectivity of the flip graph of plane spanning paths

L Kleist, P Kramer, C Rieck - … Workshop on Graph-Theoretic Concepts in …, 2024 - Springer
Flip graphs of non-crossing configurations in the plane are widely studied objects, eg, flip
graph of triangulations, spanning trees, Hamiltonian cycles, and perfect matchings …

Reconfiguration of plane trees in convex geometric graphs

N Bousquet, L De Meyer, T Pierron… - arxiv preprint arxiv …, 2023 - arxiv.org
A non-crossing spanning tree of a set of points in the plane is a spanning tree whose edges
pairwise do not cross. Avis and Fukuda in 1996 proved that there always exists a flip …

Short flip sequences to untangle segments in the plane

GD da Fonseca, Y Gerard, B Rivier - International Conference and …, 2024 - Springer
A (multi) set of segments in the plane may form a TSP tour, a matching, a tree, or any
multigraph. If two segments cross, then we can reduce the total length with the following flip …

Untangling Segments in the Plane

GD da Fonseca, Y Gerard, B Rivier - arxiv preprint arxiv:2501.12306, 2025 - arxiv.org
A set of n segments in the plane may form a Euclidean TSP tour, a tree, or a matching,
among others. Optimal TSP tours as well as minimum spanning trees and perfect matchings …

Further Connectivity Results on Plane Spanning Path Reconfiguration

V Boucard, GD da Fonseca, B Rivier - arxiv preprint arxiv:2407.00244, 2024 - arxiv.org
Given a finite set $ S $ of points, we consider the following reconfiguration graph. The
vertices are the plane spanning paths of $ S $ and there is an edge between two vertices if …

Untangling Segments in the Plane

BD Rivier - 2023 - theses.hal.science
How can we reconfigure a given set of n segments with fixed endpoints in the plane into a
crossing-free set? We remove a pair of crossing segments and insert one of the two pairs of …

Reconfiguration of non-crossing spanning trees

O Aichholzer, B Ballinger, T Biedl, M Damian… - Journal of …, 2024 - jocg.org
For a set $ P $ of $ n $ points in the plane in general position, a non-crossing spanning tree
is a spanning tree of the points where every edge is a straight-line segment between a pair …