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math.CO2025
On gamma-vectors and Chow polynomials of restrictions of reflection arrangements
Sebastian Degen, Lisa Henetmayr, Magdaléna Mišinová +2
Simplicial arrangements are a special class of hyperplane arrangements, having the property that every chamber is a simplicial cone. It is known that the simpliciality property is…
math.CO2025
The polytope of all -rank functions
Gianira N. Alfarano, Sebastian Degen
A -rank function is a real-valued function defined on the subspace lattice that is non-negative, upper bounded by the dimension function, non-decreasing, and satisfies the submo…