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相关论文: An upper bound for the regularity of binomial edge…

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We obtain an improved lower bound for the regularity of the binomial edge ideals of trees. We prove an upper bound for the regularity of the binomial edge ideals of certain subclass of block-graphs. As a consequence we obtain sharp upper…

交换代数 · 数学 2018-04-30 A. V. Jayanthan , N. Narayanan , B. V. Raghavendra Rao

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

This paper gives exact formulas for the regularity of edge ideals of edge-weighted integrally closed trees. In addition, we provide some linear upper bounds on the regularity of powers of such ideals.

交换代数 · 数学 2024-03-07 Jiaxin Li , Guangjun Zhu , Shiya Duan

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

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

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

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

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

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

In this work, some combinatorial lower bound for regularity of powers of the edge ideal of a uniform hypergarph is gained. A family of hypergraphs whose regularity of edge ideal attains this bound and has a significant difference from the…

交换代数 · 数学 2025-06-03 Fahimeh Khosh-Ahang Ghasr

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 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

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

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

We prove that the regularity of edge ideals of powers of forests is weakly decreasing. We then compute the regularity of edge ideals of powers of cycles.

交换代数 · 数学 2025-02-10 My Hanh Pham , Thanh Vu

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 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

Let $G$ be a finite simple graph and $I(G)$ denote the corresponding edge ideal in a polynomial ring over a field $\mathbb{K}$. In this paper, we obtain upper bounds for the Castelnuovo-Mumford regularity of symbolic powers of certain…

交换代数 · 数学 2021-08-20 Arvind Kumar , S Selvaraja

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
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