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A theory of matchings for finite subsets of an abelian group, introduced in connection with a conjecture of Wakeford on canonical forms for homogeneous polynomials, has since been extended to the setting of field extensions and to that of…

Combinatorics · Mathematics 2026-02-03 Mohsen Aliabadi , Jozsef Losonczy

In this paper, we introduce the notions of matching matrices in groups and vector spaces, which lead to some necessary conditions for existence of acyclic matching in abelian groups and its linear analogue. We also study the linear local…

Group Theory · Mathematics 2019-08-07 Mohsen Aliabadi , Mano Vikash Janardhanan

We present sufficient conditions for the existence of matchings in abelian groups and their linear counterparts. These conditions lead to extensions of existing results in matching theory. Additionally, we classify subsets within abelian…

Combinatorics · Mathematics 2024-04-02 Mohsen Aliabadi

A matching from a finite subset $A$ of an abelian group $G$ to another subset $B$ is a bijection $f : A \to B$ such that $af(a) \notin A$ for all $a \in A$. The study of matchings began in the 1990s and was motivated by a conjecture of E.…

Combinatorics · Mathematics 2025-08-05 Mohsen Aliabadi , Jozsef Losonczy

The question of finding sets of monomials which are removable from a generic homogeneous polynomial through a linear change in its variables was raised by E. K. Wakeford in 1916. This linear algebra question motivated J. Losonczy to define…

Combinatorics · Mathematics 2020-02-21 Mohsen Aliabadi , Shiva Soleimany Dizicheh

A matching from a finite subset $A$ of an abelian group to another subset $B$ is a bijection $f:A\rightarrow B$ with the property that $a+f(a)$ never lies in $A$. A matching is called acyclic if it is uniquely determined by its multiplicity…

Combinatorics · Mathematics 2023-08-30 Mohsen Aliabadi , Khashayar Filom

In this paper, we formulate and prove linear analogues of results concerning matchings in groups. A matching in a group G is a bijection f between two finite subsets A,B of G with the property, motivated by old questions on symmetric…

Number Theory · Mathematics 2012-08-15 Shalom Eliahou , Cedric Lecouvey

The concept of matchings originated in group theory to address a linear algebra problem related to canonical forms for symmetric tensors. In an abelian group $(G,+)$, a matching is a bijection $f: A \to B$ between two finite subsets $A$ and…

Combinatorics · Mathematics 2025-08-08 Mohsen Aliabadi , Yujia Wu , Sophia Yermolenko

In this paper, we define locally matchable subsets of a group which is derived from the concept of matchings in groups and used as a tool to give alternative proofs for existing results in matching theory. We also give the linear analogue…

Combinatorics · Mathematics 2018-08-08 Mohsen Aliabadi , Mano Vikash Janardhanan

In this paper we prove a sufficient condition for the existence of matchings in arbitrary groups and its linear analogue, which lead to some generalizations of the existing results in the theory of matchings in groups and central extensions…

Combinatorics · Mathematics 2019-01-01 Mohsen Aliabadi , Majid Hadian , Amir Jafari

In this paper, we define locally matchable subsets of a group which is extracted from the concept of matchings in groups and used as a tool to give alternative proofs for existing results in matching theory. We also give the linear analogue…

Group Theory · Mathematics 2019-10-28 Mohsen Aliabadia , Mano Vikash Janardhanan

The inquiry into identifying sets of monomials that can be eliminated from a generic homogeneous polynomial via a linear change of coordinates was initiated by E. K. Wakeford. This linear algebra problem prompted C. K. Fan and J. Losonczy…

Combinatorics · Mathematics 2024-09-06 Mohsen Aliabadi , Peter Taylor

The notion of acyclic matching property was provided by Losonczy and it was proved that torsion-free groups admit this property. In this paper, we introduce a duality of acyclic matching as a tool for classification of some Abelian groups,…

Combinatorics · Mathematics 2019-01-01 M. Aliabadi , H. Jolany , M. Amin Khajehnejad , M. J. Moghaddamzadeh , H. Shahmohamad

The matching basis in field extentions is introduced by S. Eliahou and C. Lecouvey in [2]. In this paper we define the minimal and maximal linear matching property for field extensions and prove that if K is not algebraically closed, then K…

Combinatorics · Mathematics 2016-10-31 Mohsen Aliabadi , Mohammadreza Darafsheh

We formulate and prove matroid analogues of results concerning matchings in groups. A matching in an abelian group $(G,+)$ is a bijection $f:A\to B$ between two finite subsets $A,B$ of $G$ satisfying $a+f(a)\notin A$ for all $a\in A$. A…

Combinatorics · Mathematics 2024-02-15 Mohsen Aliabadi , Shira Zerbib

The study of minimal complements in a group or a semigroup was initiated by Nathanson. The notion of minimal complements and being a minimal complement leads to the notion of co-minimal pairs which was considered in a prior work of the…

Number Theory · Mathematics 2021-08-10 Arindam Biswas , Jyoti Prakash Saha

A matching from a finite subset $A\subset\mathbb{Z}^n$ to another subset $B\subset\mathbb{Z}^n$ is a bijection $f : A \rightarrow B$ with the property that $a+f(a)$ never lies in $A$. A matching is called acyclic if it is uniquely…

Combinatorics · Mathematics 2025-08-08 Mohsen Aliabadi , Peter Taylor

A matching in a group G is a bijection f from a subset A to a subset B in G such that af(a) does not belong to A for all a in A. The group G is said to have the matching property if, for any finite subsets A,B in G of same cardinality with…

Group Theory · Mathematics 2007-05-23 Shalom Eliahou , Cedric Lecouvey

Recently, it has been proved that if we have a field extension, then it has linear matching property if and only if L is purely transcendental or is an extension of prime degree. In this note we provide a counterexample for this result.

Combinatorics · Mathematics 2015-07-28 Saieed Akbari , Mohsen Aliabadi

This paper develops matroidal analogues of classical results on matchings in abelian groups. By embedding matroid ground sets in an abelian group, we introduce base matchings between matroid bases, recover the group-theoretic setting in the…

Combinatorics · Mathematics 2026-04-21 Mohsen Aliabadi , Elliot Krop
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