A note on squarefree monomial ideals and matroid ports

A matroid port is a clutter determined by the circuits of a matroid that contain a fixed point. A monomial ideal associated to a (binary) matroid port can be characterized by using its minimal generators and its minimal prime ideals. In this note we point out this characterization and we demonstrate...

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Дата:2026
Автор: Martí-Farré, Jaume
Формат: Стаття
Мова:Англійська
Опубліковано: Lugansk National Taras Shevchenko University 2026
Теми:
Онлайн доступ:https://admjournal.luguniv.edu.ua/index.php/adm/article/view/2331
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Назва журналу:Algebra and Discrete Mathematics

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Algebra and Discrete Mathematics
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author Martí-Farré, Jaume
author_facet Martí-Farré, Jaume
author_sort Martí-Farré, Jaume
baseUrl_str https://admjournal.luguniv.edu.ua/index.php/adm/oai
collection OJS
datestamp_date 2026-04-05T09:02:49Z
description A matroid port is a clutter determined by the circuits of a matroid that contain a fixed point. A monomial ideal associated to a (binary) matroid port can be characterized by using its minimal generators and its minimal prime ideals. In this note we point out this characterization and we demonstrate that any full-supported squarefree monomial ideal is the intersection of finitely many ideals associated to matroid ports. In the binary case, the matroid port decomposition is related to the irredundant primary decomposition of the ideal.
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spelling admjournalluguniveduua-article-23312026-04-05T09:02:49Z A note on squarefree monomial ideals and matroid ports Martí-Farré, Jaume monomial ideal, matroid port, primary decomposition 13C99, 05B99 A matroid port is a clutter determined by the circuits of a matroid that contain a fixed point. A monomial ideal associated to a (binary) matroid port can be characterized by using its minimal generators and its minimal prime ideals. In this note we point out this characterization and we demonstrate that any full-supported squarefree monomial ideal is the intersection of finitely many ideals associated to matroid ports. In the binary case, the matroid port decomposition is related to the irredundant primary decomposition of the ideal. Lugansk National Taras Shevchenko University 2026-04-05 Article Article Peer-reviewed Article application/pdf https://admjournal.luguniv.edu.ua/index.php/adm/article/view/2331 10.12958/adm2331 Algebra and Discrete Mathematics; Vol 41, No 1 (2026) 2415-721X 1726-3255 en https://admjournal.luguniv.edu.ua/index.php/adm/article/view/2331/pdf Copyright (c) 2026 Algebra and Discrete Mathematics
spellingShingle monomial ideal
matroid port
primary decomposition
13C99
05B99
Martí-Farré, Jaume
A note on squarefree monomial ideals and matroid ports
title A note on squarefree monomial ideals and matroid ports
title_full A note on squarefree monomial ideals and matroid ports
title_fullStr A note on squarefree monomial ideals and matroid ports
title_full_unstemmed A note on squarefree monomial ideals and matroid ports
title_short A note on squarefree monomial ideals and matroid ports
title_sort note on squarefree monomial ideals and matroid ports
topic monomial ideal
matroid port
primary decomposition
13C99
05B99
topic_facet monomial ideal
matroid port
primary decomposition
13C99
05B99
url https://admjournal.luguniv.edu.ua/index.php/adm/article/view/2331
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AT martifarrejaume noteonsquarefreemonomialidealsandmatroidports