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math.CO2025
Framing Lattices and Flow Polytopes
Matias von Bell, Cesar Ceballos
Flow polytopes of acyclic oriented graphs arise naturally in combinatorial optimization, and the study of their volumes and triangulations has revealed intriguing connections acros…
math.CO2025
Geometric realizations of -associahedra via brick polyhedra
Cesar Ceballos, Matthias Müller
Brick polytopes constitute a remarkable family of polytopes associated to the spherical subword complexes of Knutson and Miller. They were introduced for finite Coxeter groups by P…