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Paper detail

Flip Distance Between Two Triangulations of a Point-Set is NP-complete

Given two triangulations of a convex polygon, computing the minimum number of flips required to transform one to the other is a long-standing open problem. It is not known whether the problem is in P or NP-complete. We prove that two natural generalizations of the problem are NP-complete, namely computing the minimum number of flips between two triangulations of (1) a polygon with holes; (2) a set of points in the plane.

preprint2012arXivOpen access
Anna LubiwVinayak Pathak
Computational Geometry
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Anna LubiwVinayak Pathak

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