Document Type

Article

Publication Date

2023

Journal Title

The Electronic Journal of Combinatorics

Volume Number

30

Issue Number

1

Version

Publisher PDF: the final published version of the article, with professional formatting and typesetting

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a CC BY License.

Disciplines

Mathematics

Abstract

The matching complex M (G) of a graph G is the set of all matchings in G. A

Buchsbaum simplicial complex is a generalization of both a homology manifold and

a Cohen–Macaulay complex. We give a complete characterization of the graphs G

for which M (G) is a two-dimensional Buchsbaum complex. As an intermediate step,

we determine which graphs have matching complexes that are themselves connected

graphs.

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Mathematics Commons

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