Extendable shellability for dd-dimensional complexes on d+3d+3 vertices

preprint2021arXivOpen access

Abstract

We prove that for all d≥1d \geq 1 a shellable dd-dimensional simplicial complex with at most d+3d+3 vertices is extendably shellable. The proof involves considering the structure of `exposed' edges in chordal graphs as well as a connection to linear quotients of quadratic monomial ideals.

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