
arXiv: 2503.21752
Abstract We introduce a higher uniformity analogue of graphic zonotopes and permutohedra. Specifically, given a ‐uniform hypergraph , we define its hypergraphic zonotope , and when is the complete ‐uniform hypergraph , we call its hypergraphic zonotope the acyclohedron . We express the volume of as a homologically weighted count of the spanning ‐dimensional hypertrees of , which is closely related to Kalai's generalization of Cayley's theorem in the case when (but which, curiously, is not the same). We also relate the vertices of hypergraphic zonotopes to a notion of acyclic orientations previously studied by Linial and Morgenstern for complete hypergraphs.
52B05 (Primary) 05C20, 05E45 (Secondary), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
52B05 (Primary) 05C20, 05E45 (Secondary), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
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