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The investigation and classification of non-unique factorization phenomena has attracted some interest in recent literature. For finitely generated monoids, S.T. Chapman and P.A. Garc\'ia-S\'anchez, together with several co-authors, derived…

Number Theory · Mathematics 2011-04-05 Andreas Philipp

Let $\mathfrak{R}$ be a weakly noetherian variety of unitary associative algebras (over a field $K$ of characteristic 0), i.e., every finitely generated algebra from $\mathfrak{R}$ satisfies the ascending chain condition for two-sided…

Rings and Algebras · Mathematics 2015-12-08 M. Domokos , V. Drensky

In recent years, researchers have discovered various large algebraic structures that have surprising finiteness properties, such as FI-modules and Delta-modules. In this paper, we add another example to the growing list: we show that…

Commutative Algebra · Mathematics 2016-03-24 Rohit Nagpal , Steven V Sam , Andrew Snowden

We study the homomorphisms from a fixed finitely generated group to strictly acylindrical colorable hierarchically hyperbolic groups. We prove that any such group is equationally noetherian.

Group Theory · Mathematics 2024-10-03 Ohana Barak

We show that any homomorphism between Noetherian $F$-finite rings can be factored into a regular morphism between Noetherian $F$-finite rings followed by a surjection. This result establishes an analog of the 'smooth-by-surjective'…

Commutative Algebra · Mathematics 2025-01-17 Manuel Blickle , Daniel Fink

For each endotrivial complex arising from Bredon homology of a representation sphere, we construct $p$-local quasi-isomorphisms, called forerunners, enabling us to extend Balmer--Gallauer's results in arXiv:2307.04398 Part II concerning the…

Representation Theory · Mathematics 2026-02-10 Sam K. Miller

It is well known that results on zero-sum sequences over a finitely generated abelian group can be translated to statements on generators of rings of invariants of the dual group. Here the direction of the transfer of information between…

Commutative Algebra · Mathematics 2018-11-16 M. Domokos

Let $R$ be a complete regular local ring with an algebraically closed residue field and let $A$ be a Noetherian $R$-subalgebra of the polynomial ring $R[X]$. It has been shown in \cite{DO2} that if $\dim R=1$, then $A$ is necessarily…

Commutative Algebra · Mathematics 2020-04-21 Amartya Kumar Dutta , Neena Gupta , Nobuharu Onoda

The aim of this paper is to unify classification theories of torsion classes of finite dimensional algebras and commutative Noetherian rings. For a commutative Noetherian ring $R$ and a module-finite $R$-algebra $\Lambda$, we study the set…

Representation Theory · Mathematics 2023-05-30 Osamu Iyama , Yuta Kimura

A noetherian form is an abstract self-dual framework suitable for establishing homomorphism theorems (such as the isomorphism theorems and homological diagram lemmas) for group-like structures. In this paper we identify and carry out an…

Category Theory · Mathematics 2025-01-29 Zurab Janelidze , Francois van Niekerk

We introduce the notion of independent sequences with respect to a monomial order by using the least terms of polynomials vanishing at the sequence. Our main result shows that the Krull dimension of a Noetherian ring is equal to the…

Commutative Algebra · Mathematics 2013-10-08 Gregor Kemper , Ngo Viet Trung

We study the category of Sp-equivariant modules over the infinite variable polynomial ring, where Sp denotes the infinite symplectic group. We establish a number of results about this category: for instance, we show that every finitely…

Commutative Algebra · Mathematics 2022-03-15 Steven V Sam , Andrew Snowden

In this paper, we develop basic results of algebraic geometry over abelian symmetric monoidal categories. Let $A$ be a commutative monoid object in an abelian symmetric monoidal category $(\mathbf C,\otimes,1)$ satisfying certain conditions…

Algebraic Geometry · Mathematics 2016-01-28 Abhishek Banerjee

An important classical result in ZFC asserts that every infinite cardinal number is idempotent. Using this fact, we obtain several algebraic results in this article. The first result asserts that an infinite Abelian group has a proper…

Commutative Algebra · Mathematics 2024-09-05 Abolfazl Tarizadeh

Using a theorem of L\"uck-Reich-Rognes-Varisco, we show that the Whitehead group of Thompson's group T is infinitely generated, even when tensored with the rationals. To this end we describe the structure of the centralizers and normalizers…

Geometric Topology · Mathematics 2022-01-13 Ross Geoghegan , Marco Varisco

We prove that the quantum moduli algebra associated to a possibly punctured compact oriented surface and a complex semisimple Lie algebra $\mathfrak{g}$ is a Noetherian and finitely generated ring. If the surface has punctures, we prove…

Quantum Algebra · Mathematics 2025-09-04 Stéphane Baseilhac , Matthieu Faitg , Philippe Roche

We introduce a variant of global generation for coherent sheaves on abelian varieties which, under certain circumstances, implies ampleness. This extends a criterion of Debarre asserting that a continuously globally generated coherent sheaf…

Algebraic Geometry · Mathematics 2023-02-15 Giuseppe Pareschi

Let $R$ be a Noetherian ring. We prove that $R$ has global dimension at most two if, and only if, every prime ideal of $R$ is of linear type. Similarly, we show that $R$ has global dimension at most three if, and only if, every prime ideal…

Commutative Algebra · Mathematics 2019-10-04 Francesc Planas-Vilanova

The purpose of this note is to resolve a conjecture in arXiv:2307.00442(4), regarding the initial algebra for the enrichment endofunctor $(-)\mathbf{Cat}$ over general symmetric monoidal $(\infty, 1)$-categories. We prove that Ad\'amek's…

Category Theory · Mathematics 2024-03-25 Zach Goldthorpe

To initiate a systematic study on the applications of perfectoid methods to Noetherian rings, we introduce the notions of perfectoid towers and their tilts. We mainly show that the tilting operation preserves several homological invariants…

Commutative Algebra · Mathematics 2025-10-22 Shinnosuke Ishiro , Kei Nakazato , Kazuma Shimomoto