[图书][B] Monomial algebras

RH Villarreal - 2001 - api.taylorfrancis.com
The main purpose of this book is to introduce algebraic, combinatorial, and computational
methods to study monomial algebras and their presentation ideals, including Stanley …

[PDF][PDF] Edge ideals: algebraic and combinatorial properties

S Morey, RH Villarreal - Progress in commutative algebra, 2012 - library.oapen.org
Let C be a clutter and let IC/ R be its edge ideal. This is a survey paper on the algebraic and
combinatorial properties of R= IC/and C, respectively. We give a criterion to estimate the …

[HTML][HTML] Bounds on the regularity and projective dimension of ideals associated to graphs

H Dao, C Huneke, J Schweig - Journal of Algebraic Combinatorics, 2013 - Springer
In this paper, we give new upper bounds on the regularity of edge ideals whose resolutions
are k-step linear; surprisingly, the bounds are logarithmic in the number of variables. We …

[HTML][HTML] Very well–covered graphs by Betti splittings

M Crupi, A Ficarra - Journal of Algebra, 2023 - Elsevier
A very well–covered graph is an unmixed graph without isolated vertices such that the
height of its edge ideal is half of the number of vertices. We study these graphs by means of …

Matchings, coverings, and Castelnuovo-Mumford regularity

R Woodroofe - Journal of Commutative Algebra, 2014 - JSTOR
We show that the co-chordal cover number of a graph 𝐺 gives an upper bound for the
Castelnuovo-Mumford regularity of the associated edge ideal. Several known combinatorial …

[HTML][HTML] The regularity of powers of edge ideals

A Banerjee - Journal of Algebraic Combinatorics, 2015 - Springer
In this paper, we prove the existence of a special order on the set of minimal monomial
generators of powers of edge ideals of arbitrary graphs. Using this order, we find new upper …

Regularity of powers of bipartite graphs

AV Jayanthan, N Narayanan, S Selvaraja - Journal of Algebraic …, 2018 - Springer
Let G be a finite simple graph and I (G) denote the corresponding edge ideal. For all s ≥ 1
s≥ 1, we obtain upper bounds for reg (I (G)^ s) reg (I (G) s) for bipartite graphs. We then …

Regularity of edge ideals and their powers

A Banerjee, SK Beyarslan, H Huy Tài - Advances in Algebra: SRAC 2017 …, 2019 - Springer
We survey recent studies on the Castelnuovo–Mumford regularity of edge ideals of graphs
and their powers. Our focus is on bounds and exact values of reg I (G) reg I (G) and the …

[HTML][HTML] Depth and regularity modulo a principal ideal

G Caviglia, HT Hà, J Herzog, M Kummini… - Journal of Algebraic …, 2019 - Springer
We study the relationship between depth and regularity of a homogeneous ideal I and those
of (I, f) and I: f, where f is a linear form or a monomial. Our results have several interesting …

Sequentially Cohen–Macaulay bipartite graphs: vertex decomposability and regularity

A Van Tuyl - Archiv der Mathematik, 2009 - Springer
Let G be a bipartite graph with edge ideal I (G) whose quotient ring R/I (G) is sequentially
Cohen–Macaulay. We prove:(1) the independence complex of G must be vertex …