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math.CO2010
Convex-Ear Decompositions and the Flag h-Vector
Jay Schweig
We prove a theorem allowing us to find convex-ear decompositions for rank-selected subposets of posets that are unions of Boolean sublattices in a coherent fashion. We then apply t…
math.CO2010
Toric Ideals of Lattice Path Matroids and Polymatroids
Jay Schweig
We show that the toric ideal of a lattice path polymatroid is generated by quadrics corresponding to symmetric exchanges, and give a monomial order under which these quadrics form…