[PDF][PDF] Projective dimension and regularity of 3-path ideals of unicyclic graphs

NT Hang, T Vu - arXiv preprint arXiv:2402.16166, 2024 - arxiv.org
arXiv:2402.16166v1 [math.AC] 25 Feb 2024 Page 1 arXiv:2402.16166v1 [math.AC] 25 Feb 2024
PROJECTIVE DIMENSION AND REGULARITY OF 3-PATH IDEALS OF UNICYCLIC GRAPHS …

Projective dimension and regularity of edge ideals of some weighted oriented graphs

G Zhu, L Xu, H Wang, Z Tang - 2019 - projecteuclid.org
We provide formulas for the projective dimension and the regularity of edge ideals
associated to vertex weighted rooted forests and oriented cycles. We derive from that exact …

Regularity of powers of path ideals of line graphs

J Shan, D Lu - Communications in Algebra, 2024 - Taylor & Francis
Let I be the t-path ideal of Ln, the line graph with n-vertices. It is shown that Is has a linear
resolution for some s≥ 1 (or equivalently for all s≥ 1) if and only if Is has linear quotients for …

Multiplicity of powers of path ideals of a line graph

J Shan, Z Wang, D Lu - arXiv preprint arXiv:2402.13477, 2024 - arxiv.org
Let $ S= K [x_1,\ldots, x_n] $ and let $ I $ be the $ t $-path ideal of the line graph $ L_n $ with
$ n $-vertices. It is shown that the set of associated prime ideals of $ I^ s $ is equal to the set …

Regularity of 3-path ideals of trees and unicyclic graphs

R Kumar, R Sarkar - Bulletin of the Malaysian Mathematical Sciences …, 2024 - Springer
Let G be a simple graph and I 3 (G) be its 3-path ideal in the corresponding polynomial ring
R. In this article, we prove that for an arbitrary graph G, reg (R/I 3 (G)) is bounded below by 2 …

Powers of facet ideals of simplicial trees

A Kumar, A Kumar - arXiv preprint arXiv:2306.01994, 2023 - arxiv.org
In this article, we study the linearity of the minimal free resolution of powers of facets ideals
of simplicial trees. We give a complete characterization of simplicial trees for which (some) …

Projective dimension and regularity of powers of edge ideals of vertex-weighted rooted forests

L Xu, G Zhu, H Wang, J Zhang - Bulletin of the Malaysian Mathematical …, 2021 - Springer
Projective Dimension and Regularity of Powers of Edge Ideals of Vertex-Weighted Rooted
Forests | SpringerLink Skip to main content Advertisement SpringerLink Log in Menu Find a …

Regularity in weighted oriented graphs

M Mandal, DK Pradhan - Indian Journal of Pure and Applied Mathematics, 2021 - Springer
Let D be a weighted oriented graph with the underlying graph G and I (D), I (G) be the edge
ideals corresponding to D and G respectively. We show that the regularity of edge ideal of a …

On the path ideals of chordal graphs

KK Das, A Roy, K Saha - arXiv preprint arXiv:2405.15897, 2024 - arxiv.org
In this article, we give combinatorial formulas for the regularity and the projective dimension
of $3 $-path ideals of chordal graphs, extending the well-known formulas for the edge ideals …

Projective dimension and regularity of edge ideals of some vertex-weighted oriented unicyclic graphs

G Zhu, H Wang - arXiv preprint arXiv:2309.10317, 2023 - arxiv.org
In this paper we provide some exact formulas for the projective dimension and the regularity
of edge ideals of vertex-weighted oriented unicyclic graphs. These formulas are in function …