Results 41 to 50 of about 237,348 (199)

Free Resolutions and Generalized Hamming Weights of Binary Linear Codes

open access: yesMathematics, 2022
In this work, we explore the relationship between the graded free resolution of some monomial ideals and the Generalized Hamming Weights (GHWs) of binary codes.
Ignacio García-Marco   +3 more
doaj   +1 more source

Divisors on graphs, Connected flags, and Syzygies [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We study the binomial and monomial ideals arising from linear equivalence of divisors on graphs from the point of view of Gröbner theory. We give an explicit description of a minimal Gröbner basis for each higher syzygy module.
Fatemeh Mohammadi, Farbod Shokrieh
doaj   +1 more source

A remark on sequentially Cohen-Macaulay monomial ideals [PDF]

open access: yesTransactions on Combinatorics
Let $R=K[x_1,\ldots,x_n]$ be the polynomial ring in $n$ variables over a field $K$. We show that if $G$ is a connected graph with a basic $5$-cycle $C$, then $G$ is a sequentially Cohen-Macaulay graph if and only if there exists a shedding vertex $x$ of $
Mozhgan Koolani, Amir Mafi
doaj   +1 more source

Current Trends on Monomial and Binomial Ideals [PDF]

open access: yes, 2020
Historically, the study of monomial ideals became fashionable after the pioneering work by Richard Stanley in 1975 on the upper bound conjecture for spheres.
Hibi, Takayuki, H
core   +1 more source

Algebraic Properties of Monomial Ideals

open access: yes, 2015
In this thesis we first study a special class of squarefree monomial ideals, namely, path ideals. We give a formula to compute all graded Betti numbers of the path ideal of a cycle and a path.
Alilooee, Ali
core   +2 more sources

Monomial ideals via square-free monomial ideals [PDF]

open access: yes, 2005
Corrected Statement of Corollary 2.6 (took one statement out)
openaire   +3 more sources

A note on minimal resolutions of vector–spread Borel ideals

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
We consider vector–spread Borel ideals. We show that these ideals have linear quotients and thereby we determine the graded Betti numbers and the bigraded Poincaré series.
Crupi Marilena, Ficarra Antonino
doaj   +1 more source

Algebraic Analysis of Variants of Multi-State k-out-of-n Systems

open access: yesMathematics, 2021
We apply the algebraic reliability method to the analysis of several variants of multi-state k-out-of-n systems. We describe and use the reliability ideals of multi-state consecutive k-out-of-n systems with and without sparse, and show the results of ...
Patricia Pascual-Ortigosa   +1 more
doaj   +1 more source

Cohen–Macaulayness of Vertex Splittable Monomial Ideals

open access: yesMathematics
In this paper, we give a new criterion for the Cohen–Macaulayness of vertex splittable ideals, a family of monomial ideals recently introduced by Moradi and Khosh-Ahang. Our result relies on a Betti splitting of the ideal and provides an inductive way of
Marilena Crupi, Antonino Ficarra
doaj   +1 more source

When Is a Graded Free Complex Exact?

open access: yesMathematics, 2022
Minimal free resolutions of a finitely generated module over a polynomial ring S=k[x], with variables x={x1,…,xn} and a field k have been extensively studied.
David C. Molano   +2 more
doaj   +1 more source

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