arXiv:2401.07492 [math.CO]AbstractReferencesReviewsResources
2-levelness of Marked Poset Polytopes
Published 2024-01-15Version 1
It is already known that order polytopes and chain polytopes are always 2-level polytopes. In general, this is not true for marked order and marked chain polytopes. We study the geometry of marked order polytopes, marked chain polytopes, and marked chain-order polytopes, providing a comprehensive characterisation of 2-levelness for these polytopes. Furthermore, we present an exact formula for the Ehrhart polynomial of marked order polytopes. Because of their connection to marked chain and marked chain-order polytopes, this polynomial is also the Ehrhart polynomial of these polytopes.
Comments: 19 pages, 6 figures
Categories: math.CO
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