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We prove that the edge ideals of line and cyclic graphs and their quotient rings satisfy the Stanley conjecture. We compute the Stanley depth for the quotient ring of the edge ideal associated to a cycle graph of length $n$, given a precise…

Commutative Algebra · Mathematics 2016-03-29 Mircea Cimpoeas

Let $k$ be a positive integer. We compute depth and Stanley depth of the quotient ring of the edge ideal associated to the $k^{th}$ power of a path on $n$ vertices. We show that both depth and Stanley depth have the same values and can be…

Commutative Algebra · Mathematics 2017-10-18 Zahid Iqbal , Muhammad Ishaq

We consider the path ideal associated to a line graph, we compute \texttt{sdepth} for its quotient ring and note that it is equal with its \texttt{depth}. In particular, it satisfies the Stanley inequality.

Commutative Algebra · Mathematics 2017-11-06 Mircea Cimpoeas

We give tight bounds for the Stanley depth of the quotient ring of the path ideal of a cycle graph. In particular, we prove that it satisfies the Stanley inequality.

Commutative Algebra · Mathematics 2019-04-18 Mircea Cimpoeas

In this paper we study depth and Stanley depth of the edge ideals and quotient rings of the edge ideals, associated to classes of graphs obtained by taking the strong product of two graphs. We consider the cases when either both graphs are…

Commutative Algebra · Mathematics 2019-09-09 Zahid Iqbal , Muhammad Ishaq , Muhammad Ahsan Binyamin

Let $J_{n,m}:=(x_1x_2\cdots x_m,\; x_2x_3\cdots x_{m+1},\; \ldots,\; x_{n-m+1}\cdots x_n,\; x_{n-m+2}\cdots x_nx_1, \ldots, x_nx_1\cdots x_{m-1})$ be the $m$-path ideal of the cycle graph of length $n$, in the ring $S=K[x_1,\ldots,x_n]$.…

Commutative Algebra · Mathematics 2024-02-06 Silviu Balanescu , Mircea Cimpoeas

Let $I_{n,m}:=(x_1x_2\cdots x_m,\; x_2x_3\cdots x_{m+1},\; \ldots,\; x_{n-m+1}\cdots x_n)$ be the $m$-path ideal of the path graph of length $n$, in the ring $S=K[x_1,\ldots,x_n]$. We prove that: $$\mathtt{depth}(S/I_{n,m}^t)=\begin{cases}…

Commutative Algebra · Mathematics 2023-03-03 Silviu Balanescu , Mircea Cimpoeas

The aim of this paper is to give a formula for the Stanley depth of quotient of powers of the path ideal. As a consequence, we establish that the behaivior of the Stanley depth of quotient of powers of the path ideal is the same as a…

Commutative Algebra · Mathematics 2014-09-23 Alin Ştefan

Let $J_{n,m}:=(x_1x_2\cdots x_m,\; x_2x_3\cdots x_{m+1},\; \ldots,\; x_{n-m+1}\cdots x_n,\; x_{n-m+2}\cdots x_nx_1, \ldots, x_nx_1\cdots x_{m-1})$ be the $m$-path ideal of the cycle graph of length $n$, in the ring of polynomials…

Commutative Algebra · Mathematics 2024-02-06 Silviu Balanescu , Mircea Cimpoeas

We compute the Stanley depth for a particular, but important case, of the quotient of complete intersection monomial ideals. Also, in the general case, we give sharp bounds for the Stanley depth of a quotient of complete intersection…

Commutative Algebra · Mathematics 2024-05-01 Mircea Cimpoeas

We consider the face ideal associated to a line-type simplicial complex. We compute the \texttt{depth} and the \texttt{sdepth} for its quotient ring. In particular, the facet ideal and its quotient ring satisfy the Stanley inequality.

Commutative Algebra · Mathematics 2015-08-17 Mircea Cimpoeas

We give an upper bound for the Stanley depth of the edge ideal of a complete $k$-partite hypergraph and as an application we give an upper bound for the Stanley depth of a monomial ideal in a polynomial ring $S$. We also give a lower and an…

Commutative Algebra · Mathematics 2012-02-29 Muhammad Ishaq , Muhammad Imran Qureshi

We compute the Stanley depth for the quotient ring of a square free Veronese ideal and we give some bounds for the Stanley depth of a square free Veronese ideal. In particular, it follows that both satisfy the Stanley's conjecture.

Commutative Algebra · Mathematics 2024-05-01 Mircea Cimpoeas

We study the Stanley depth and the Hilbert depth for $I$ and $S/I$, where $I\subset S=K[x_1,\ldots,x_N]$ is the intersection of monomial prime ideals with disjoint sets of variables. As an application, we obtain bounds for the Stanley depth…

Commutative Algebra · Mathematics 2024-07-10 Silviu Balanescu , Mircea Cimpoeas

We study the Stanley depth and the Hilbert depth of the edge ideals of path graphs, cycle graphs, generalized star graphs and double broom graphs.

Commutative Algebra · Mathematics 2024-11-19 Andreea I. Bordianu , Mircea Cimpoeas

We obtain the exact values for depth and projective dimension and lower bounds for Stanley depth of the quotient rings of the edge ideals associated with all cubic circulant graphs.

Commutative Algebra · Mathematics 2023-07-25 Bakhtawar Shaukat , Muhammad Ishaq , Ahtsham ul Haq , Zahid Iqbal

We compute the Stanley depth of irreducible monomial ideals and we show that the Stanley depth of a monomial complete intersection ideal is the same as the Stanley depth of it's radical. Also, we give some bounds for the Stanley depth of a…

Commutative Algebra · Mathematics 2016-03-29 Mircea Cimpoeas

We give an upper bound for the Stanley depth of the edge ideal $I$ of a $k$-partite complete graph and show that Stanley's conjecture holds for $I$. Also we give an upper bound for the Stanley depth of the edge ideal of a $k$-uniform…

Commutative Algebra · Mathematics 2011-04-07 Muhammad Ishaq , Muhammad Imran Qureshi

We give different bounds for the Stanley depth of a monomial ideal $I$ of a polynomial algebra $S$ over a field $K$. For example we show that the Stanley depth of $I$ is less or equal with the Stanley depth of any prime ideal associated to…

Commutative Algebra · Mathematics 2010-10-25 Muhammad Ishaq

Let $I$ be an $m$-generated complete intersection monomial ideal in $S=K[x_1,...,x_n]$. We show that the Stanley depth of $I$ is $n-\floor{\frac{m}{2}}$. We also study the upper-discrete structure for monomial ideals and prove that if $I$…

Commutative Algebra · Mathematics 2008-12-22 YiHuang Shen
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