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A set of polynomials G in a polynomial ring S over a field is said to be a universal Groebner basis, if G is a Groebner basis with respect to every term order on S. Twenty years ago Bernstein, Sturmfels, and Zelevinsky proved that the set…

Commutative Algebra · Mathematics 2013-02-26 Aldo Conca , Emanuela De Negri , Elisa Gorla

Let I be either the ideal of maximal minors or the ideal of 2-minors of a row graded or column graded matrix of linear forms L. In two previous papers we showed that I is a Cartwright-Sturmfels ideal, that is, the multigraded generic…

Commutative Algebra · Mathematics 2016-09-01 Aldo Conca , Emanuela De Negri , Elisa Gorla

In this paper, we survey the theory of Cartwright-Sturmfels ideals. These are Z^n-graded ideals, whose multigraded generic initial ideal is radical. Cartwright-Sturmfels ideals have surprising properties, mostly stemming from the fact that…

Commutative Algebra · Mathematics 2021-08-24 A. Conca , E. De Negri , E. Gorla

A universal Gr\"obner basis of an ideal is the union of all its reduced Gr\"obner bases. It is contained in the Graver basis, the set of all primitive elements. Obtaining an explicit description of either of these sets, or even a sharp…

Commutative Algebra · Mathematics 2007-11-22 Sonja Petrović

We provide necessary and sufficient conditions for simplicial complexes whose determinantal facet ideals admit reduced Grobner bases under diagonal term orders. Building on and extending foundational results for binomial edge ideals and…

Commutative Algebra · Mathematics 2026-01-27 Fahimeh Khosh-Ahang Ghasr

Blockwise determinantal ideals are those generated by the union of all the minors of specified sizes in certain blocks of a generic matrix, and they are the natural generalization of many existing determinantal ideals like the Schubert and…

Commutative Algebra · Mathematics 2024-09-20 Chenqi Mou , Qiuye Song

We give a criterion for a collection of polynomials to be a universal Gr\"{o}bner basis for an ideal in terms of the multidegree of the closure of the corresponding affine variety in $(\mathbb{P}^1)^N$. This criterion can be used to give…

Algebraic Geometry · Mathematics 2024-11-27 Daoji Huang , Matt Larson

We improve certain degree bounds for Grobner bases of polynomial ideals in generic position. We work exclusively in deterministically verifiable and achievable generic positions of a combinatorial nature, namely either strongly stable…

Symbolic Computation · Computer Science 2017-05-09 Amir Hashemi , Werner M. Seiler

Binomial edge ideals associated to a simple graph G were introduced by Herzog and collaborators and, independently, by Ohtani. They became an ``instant classic" in combinatorial commutative algebra with more than 100 papers devoted to their…

Commutative Algebra · Mathematics 2026-01-13 Aldo Conca , Emanuela De Negri , Volkmar Welker

We introduce a very natural topology on the set of total orderings of monomials of any algebra having a countable basis over a field. This topological space and some notable subspaces are compact. This topological framework allows us to…

Rings and Algebras · Mathematics 2011-06-02 Roberto Boldini

We introduce the notion of Groebner S-basis of an ideal of the free associative algebra K<X> over a field K invariant under the action of a semigroup S of endomorphisms of the algebra. We calculate the Groebner S-bases of the ideal…

Rings and Algebras · Mathematics 2007-05-23 Vesselin Drensky , Roberto La Scala

We determine a Groebner basis for the secant ideal of the toric ideal associated to the second hypersimplex, with respect to any circular term order. The Groebner basis of the secant ideal requires polynomials of odd degree up to n. This…

Commutative Algebra · Mathematics 2008-12-10 Seth Sullivant

We introduce the theory of monoidal Groebner bases, a concept which generalizes the familiar notion in a polynomial ring and allows for a description of Groebner bases of ideals that are stable under the action of a monoid. The main…

Commutative Algebra · Mathematics 2011-08-25 Christopher J. Hillar , Seth Sullivant

Inspired by work of Cartwright and Sturmfels, in a previous paper we introduced two classes of multigraded ideals named after them. These ideals are defined in terms of properties of their multigraded generic initial ideals. The goal of…

Commutative Algebra · Mathematics 2021-03-24 Aldo Conca , Emanuela De Negri , Elisa Gorla

We study a class of combinatorially-defined polynomial ideals which are generated by minors of a generic symmetric matrix. Included within this class are the symmetric determinantal ideals, the symmetric ladder determinantal ideals, and the…

Algebraic Geometry · Mathematics 2024-02-21 Laura Escobar , Alex Fink , Jenna Rajchgot , Alexander Woo

Let G be a finite graph on [n] = {1,2,3,...,n}, X a 2 times n matrix of indeterminates over a field K, and S = K[X] a polynomial ring over K. In this paper, we study about ideals I_G of S generated by 2-minors [i,j] of X which correspond to…

Commutative Algebra · Mathematics 2009-11-16 Masahiro Ohtani

Multiview ideals arise from the geometry of image formation in pinhole cameras, and universal multiview ideals are their analogs for unknown cameras. We prove that a natural collection of polynomials form a universal Gr\"obner basis for…

Commutative Algebra · Mathematics 2025-09-30 Timothy Duff , Jack Kendrick , Rekha R. Thomas

In the context of modeling biological systems, it is of interest to generate ideals of points with a unique reduced Groebner basis, and the first main goal of this paper is to identify classes of ideals in polynomial rings which share this…

Commutative Algebra · Mathematics 2024-11-19 Elena Dimitrova , Qijun He , Lorenzo Robbiano , Brandilyn Stigler

In this article, we study binomial ideals generated by an arbitrary collection of corner-interval $2$-minors of a generic matrix. We determine the minimal prime ideals of such ideals and characterize their radicality in the special case of…

Commutative Algebra · Mathematics 2025-06-12 Marie Amalore Nambi

The universal Gr\"{o}bner basis of $I$, is a Gr\"{o}bner basis for $I$ with respect to all term orders simultaneously. Let $I_G$ be the toric ideal of a graph $G$. We characterize in graph theoretical terms the elements of the universal…

Commutative Algebra · Mathematics 2010-05-25 Christos Tatakis , Apostolos Thoma
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