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math.CO2026
Locally anti-blocking -polytopes for flow polytopes
Jonah Berggren, Benjamin Braun, Alvaro Cornejo +6
Given an acyclic directed graph (DAG), the space of strength one flows is a lattice polytope called the flow polytope of the DAG. If the DAG admits an ample framing, then the flow…
math.CO2026
On the Common Generalization of Gentle Algebras and Framed Directed Acyclic Graphs
Jonah Berggren
In the study of flow polytopes, a directed acyclic graph (DAG) with a choice of framing gives a regular unimodular triangulation on its space of unit nonnegative flows. In represen…
math.CO2026
Framing Triangulations for Arbitrary Integer Flow Polytopes
Jonah Berggren
Framing triangulations of unit flow polytopes have received a great deal of recent study with rich connections to various generalizations of Catalan and Cambrian combinatorics as w…