Results 1 to 10 of about 1,118,707 (279)

Matchings and squarefree powers of edge ideals [PDF]

open access: yesJournal of Combinatorial Theory - Series A, 2022
21 pages, 6 ...
Nursel Erey   +2 more
exaly   +10 more sources

Smoothness in Binomial Edge Ideals [PDF]

open access: yesMathematics, 2016
In this paper we study some geometric properties of the algebraic set associated to the binomial edge ideal of a graph. We study the singularity and smoothness of the algebraic set associated to the binomial edge ideal of a graph. Some of these algebraic
Hamid Damadi, Farhad Rahmati
doaj   +3 more sources

The v-number of edge ideals

open access: yesJournal of Combinatorial Theory - Series A, 2021
The aim of this work is to study the v-number of edge ideals of clutters and graphs. We relate the v-number with the regularity of edge ideals and study the combinatorial structure of the graphs whose edge ideals have their second symbolic power Cohen-Macaulay.
Rafael H Villarreal, Delio Jaramillo
exaly   +3 more sources

Licci binomial edge ideals [PDF]

open access: yesJournal of Combinatorial Theory - Series A, 2020
We give a complete characterization of graphs whose binomial edge ideal is licci. An important tool is a new general upper bound for the regularity of binomial edge ideals.
Viviana Ene   +2 more
exaly   +5 more sources

Regularity of the edge ideals of perfect [ν,h]-ary trees and some unicyclic graphs [PDF]

open access: yesHeliyon
We compute the Castelnuovo-Mumford regularity of the quotient rings of edge ideals of perfect [ν,h]-ary trees and some unicyclic graphs.
Fatima Tul Zahra   +2 more
doaj   +2 more sources

Gorenstein binomial edge ideals [PDF]

open access: yesMathematische Nachrichten, 2021
AbstractWe classify connected graphs G whose binomial edge ideal is Gorenstein. In our proofs we use Frobenius type techniques and F‐pure thresholds.
exaly   +3 more sources

Koszul binomial edge ideals

open access: yesForum of Mathematics, Sigma
The study of Koszul binomial edge ideals was initiated by V. Ene, J. Herzog, and T. Hibi in 2014, who found necessary conditions for Koszulness. The binomial edge ideal $J_G$ associated to a finite simple graph G is always generated by quadrics ...
Adam LaClair   +3 more
doaj   +3 more sources

Algebraic invariants of the edge ideals of whisker graphs of cubic circulant graphs [PDF]

open access: yesHeliyon
Let Q be a polynomial ring over a field F and I be an edge ideal associated with the whisker graph of a cubic circulant graph. We discuss the regularity, depth, Stanley depth, and projective dimension of Q/I.
Mujahid Ullah Khan Afridi   +2 more
doaj   +2 more sources

The regularity of powers of edge ideals [PDF]

open access: yesJournal of Algebraic Combinatorics, 2014
Accepted for publication in Journal of Algebraic ...
exaly   +3 more sources

C4-free edge ideals [PDF]

open access: yesJournal of Algebraic Combinatorics, 2012
The paper under review is inspired by the question of for which graphs do all powers of the edge ideals have linear resolutions. It is known (cf. \textit{D. Eisenbud} et al., [Compos. Math. 141, No. 6, 1460--1478 (2005; Zbl 1086.14044)] and \textit{H.T. Hà} and \textit{A. Van Tuyl} [J. Algebra 309, No. 1, 405--425 (2007; Zbl 1151.13017)]) that the edge
Eran Nevo, Irena Peeva
exaly   +2 more sources

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