Morphisms and order ideals of toric posets

Matthew Macauley

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arXiv · 1501.02239

Morphisms and order ideals of toric posets

Matthew Macauley

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Abstract

Toric posets are cyclic analogues of finite posets. They can be viewed combinatorially as equivalence classes of acyclic orientations generated by converting sources into sinks, or geometrically as chambers of toric graphic hyperplane arrangements. In this paper we study toric intervals, morphisms, and order ideals, and we provide a connection to cyclic reducibility and conjugacy in Coxeter groups.

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Matthew Macauley. 2015-05-15. Morphisms and order ideals of toric posets. https://arxiv.org/abs/1501.02239

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