Steffen Oppermann ; Hugh Thomas
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Triangulations of cyclic polytopes
dmtcs:3068 -
Discrete Mathematics & Theoretical Computer Science,
January 1, 2012,
DMTCS Proceedings vol. AR, 24th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2012)
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https://doi.org/10.46298/dmtcs.3068
Triangulations of cyclic polytopesArticle
Authors: Steffen Oppermann 1; Hugh Thomas 2
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Steffen Oppermann;Hugh Thomas
1 Institutt for Matematiske Fag [Trondheim]
2 Department of Mathematics and Statistics
We give a new description of the combinatorics of triangulations of even-dimensional cyclic polytopes, and of their bistellar flips. We show that the tropical exchange relation governing the number of intersections between diagonals of a polygon and a lamination (which generalizes to arbitrary surfaces) can also be generalized in a different way, to the setting of higher dimensional cyclic polytopes.