We characterize a certain class of Cohen-Macaulay simplicial complexes. This class is associated to lexsegment ideals. For the considered class, we nd when a simplicial complex is Buchsbaum and not Cohen-Macaulay. As applications we show that all simplicial complexes, Buchsbaum and not Cohen-Macaulay associated to this class have a linear resolution, and we determine some classes of unmixed Stanley-Reisner ideals.
Titolo: | Cohen-Macaulay squarefree lexsegment ideals generated in degree 2 | |
Autori: | ||
Data di pubblicazione: | 2009 | |
Serie: | ||
Handle: | http://hdl.handle.net/20.500.12318/14888 | |
ISBN: | 978-0-8218-4758-9 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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