The complement of a d-tree is Cohen-Macaulay
- Autores: Daniela Ferrarelo
- Localización: Mathematica scandinavica, ISSN 0025-5521, Vol. 99, Nº 2, 2006, págs. 161-167
- Idioma: inglés
- Enlaces
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Resumen
In this work we obtain the result that the complement of a $d$-tree is a Cohen-Macaulay graph. To do this we use a theorem by Fröberg that estabilishes a condition for a Stanley-Reisner ring of a simplicial complex to be Cohen-Macaulay and a useful lemma to pass from a Stanley-Reisner ideal of a simplicial complex to an edge ideal of a graph.
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