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相关论文: Regularity of Binomial Edge Ideals of Certain Bloc…

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In this article we obtain an improved upper bound for the regularity of binomial edge ideals of trees.

交换代数 · 数学 2018-08-21 A. V. Jayanthan , N. Narayanan , B. V. Raghavendra Rao

We find a class of block graphs whose binomial edge ideals have minimal regularity. As a consequence, we characterize the trees whose binomial edge ideals have minimal regularity. Also, we show that the binomial edge ideal of a block graph…

交换代数 · 数学 2014-02-11 Faryal Chaudhry , Ahmet Dokuyucu , Rida Irfan

In this article, we obtain an upper bound for the regularity of the binomial edge ideal of a graph whose every block is either a cycle or a clique. As a consequence, we obtain an upper bound for the regularity of binomial edge ideal of a…

交换代数 · 数学 2020-10-23 A. V. Jayanthan , Rajib Sarkar

In this paper, we use Betti splittings of binomial edge ideals to establish improved upper and lower bounds for their regularity in the case of trees. As a consequence, we determine the exact regularity for certain classes of trees.

交换代数 · 数学 2025-05-01 Rajiv Kumar , Paramhans Kushwaha

We compute the depth and (give bounds for) the regularity of generalized binomial edge ideals associated with generalized block graphs.

交换代数 · 数学 2017-09-25 Faryal Chaudhry , Rida Irfan

Let $G$ be a simple graph on $n$ vertices and $\mathcal{I}_G$ denotes parity binomial edge ideal of $G$ in the polynomial ring $S = \mathbb{K}[x_1,\ldots, x_n, y_1, \ldots, y_n].$ We obtain a lower bound for the regularity of parity…

交换代数 · 数学 2021-08-20 Arvind Kumar

In this article, we compute the regularity of Rees algebra of binomial edge ideals of closed graphs. We obtain a lower bound for the regularity of Rees algebra of binomial edge ideals. We also study some algebraic properties of the Rees…

交换代数 · 数学 2021-12-07 Arvind Kumar

In this article, we survey the recent results on the Castelnuovo-Mumford regularity of binomial edge ideals and generalized binomial edge ideals. We also generalize some of the known upper bounds for binomial edge ideals to the case of…

交换代数 · 数学 2025-08-19 A. V. Jayanthan , Arvind Kumar

We study the regularity of binomial edge ideals. For a closed graph $G$ we show that the regularity of the binomial edge ideal $J_G$ coincides with the regularity of $\ini_{\lex}(J_G)$ and can be expressed in terms of the combinatorial data…

交换代数 · 数学 2013-07-09 Viviana Ene , Andrei Zarojanu

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.

交换代数 · 数学 2019-10-10 Viviana Ene , Giancarlo Rinaldo , Naoki Terai

Let $G$ be a simple graph on $n$ vertices and $J_G$ denote the corresponding binomial edge ideal in $S = K[x_1, \ldots, x_n, y_1,\ldots, y_n].$ We prove that the Castelnuovo-Mumford regularity of $J_G$ is bounded above by $c(G)+1$ when $G$…

组合数学 · 数学 2021-08-20 Arvind Kumar

We provide the necessary and sufficient conditions for the edge-binomials of the tree forming a $d$-sequence in terms of the degree sequence notion of a graph. We study the regularity of powers of the binomial edge ideals of trees generated…

交换代数 · 数学 2023-05-19 Marie Amalore Nambi , Neeraj Kumar

We classify generalized block graphs whose binomial edge ideals admit a unique extremal Betti number. We prove that the Castelnuovo-Mumford regularity of binomial edge ideals of generalized block graphs is bounded below by $m(G)+1$, where…

交换代数 · 数学 2021-12-07 Arvind Kumar

Let $J_G$ be the binomial edge ideal of a graph $G$. We characterize all graphs whose binomial edge ideals, as well as their initial ideals, have regularity $3$. Consequently we characterize all graphs $G$ such that $J_G$ is extremal…

交换代数 · 数学 2017-06-29 Sara Saeedi Madani , Dariush Kiani

This research focuses on analyzing the depth of generalized binomial edge ideals. We extend the notion of $d$-compatible map for the pairs of a complete graph and an arbitrary graph, and using it, we give a combinatorial lower bound for the…

交换代数 · 数学 2024-01-15 Anuvinda J , Ranjana Mehta , Kamalesh Saha

We determine the Castelnuovo-Mumford regularity of binomial edge ideals of complement reducible graphs (cographs). For cographs with $n$ vertices the maximum regularity grows as $2n/3$. We also bound the regularity by graph theoretic…

交换代数 · 数学 2021-03-11 Thomas Kahle , Jonas Krüsemann

We show that the Castelnuovo-Mumford regularity of the binomial edge ideal of a graph is bounded below by the length of its longest induced path and bounded above by the number of its vertices.

交换代数 · 数学 2012-08-14 Kazunori Matsuda , Satoshi Murai

In this paper we prove the conjectured upper bound for Castelnuovo-Mumford regularity of binomial edge ideals posed in [23], in the case of chordal graphs. Indeed, we show that the regularity of any chordal graph G is bounded above by the…

交换代数 · 数学 2018-10-09 M. Rouzbahani Malayeri , S. Saeedi Madani , D. Kiani

In this paper, we prove the upper bound conjecture proposed by Saeedi Madani \& Kiani on the Castelnuovo-Mumford regularity of generalized binomial edge ideals. We give a combinatorial upper bound of regularity for generalized binomial edge…

交换代数 · 数学 2025-12-02 Anuvinda J , Ranjana Mehta , Kamalesh Saha

For a finite simple graph $G$ we give an upper bound for the regularity of the powers of the edge ideal $I(G)$.

交换代数 · 数学 2018-10-16 Jürgen Herzog , Takayuki Hibi
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