An upper bound for the regularity of symbolic powers of edge ideals of chordal graphs
The electronic journal of combinatorics, Tome 26 (2019) no. 2
Assume that $G$ is a chordal graph with edge ideal $I(G)$ and ordered matching number $\nu_{o}(G)$. For every integer $s\geq 1$, we denote the $s$-th symbolic power of $I(G)$ by $I(G)^{(s)}$. It is shown that ${\rm reg}(I(G)^{(s)})\leq 2s+\nu_{o}(G)-1$. As a consequence, we determine the regularity of symbolic powers of edge ideals of chordal Cameron-Walker graphs.
DOI :
10.37236/8566
Classification :
13D02, 05E99
Mots-clés : syzygies, resolutions
Mots-clés : syzygies, resolutions
Affiliations des auteurs :
Seyed Amin Seyed Fakhari  1
@article{10_37236_8566,
author = {Seyed Amin Seyed Fakhari},
title = {An upper bound for the regularity of symbolic powers of edge ideals of chordal graphs},
journal = {The electronic journal of combinatorics},
year = {2019},
volume = {26},
number = {2},
doi = {10.37236/8566},
zbl = {1411.13014},
url = {http://geodesic.mathdoc.fr/articles/10.37236/8566/}
}
Seyed Amin Seyed Fakhari. An upper bound for the regularity of symbolic powers of edge ideals of chordal graphs. The electronic journal of combinatorics, Tome 26 (2019) no. 2. doi: 10.37236/8566
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