Abstract
Let I ⊂ S = K[x1,...,xn] be a lexsegment edge ideal or the Alexander dual of such an ideal. In both cases it turns out that the arithmetical rank of I is equal to the projective dimension of S/I.
Original language | English |
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Pages (from-to) | 315-327 |
Number of pages | 13 |
Journal | Bulletin Mathematique de la Societe des Sciences Mathematiques de Roumanie |
Volume | 53 |
Issue number | 4 |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Alexander dual
- Arithmetical rank
- Edge ideals
- Projective dimension
- Regularity
- Squarefree lexsegment ideals
ASJC Scopus subject areas
- Mathematics(all)