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This paper is a survey on universal algorithms for solving the matrix Bellman equations over semirings and especially tropical and idempotent semirings. However, original algorithms are also presented. Some applications and software…

Rings and Algebras · Mathematics 2014-01-20 Grigory L. Litvinov , Anatoly Ya. Rodionov , Sergei N. Sergeev , Andrei N. Sobolevski

In this paper, we investigate the algebraic properties of the expectation semirings which are semiring version of the concept of trivial extension in ring theory. We discuss ideals, primes, maximals and primary ideals of these semirings. We…

Commutative Algebra · Mathematics 2020-02-05 Peyman Nasehpour

We study a numerical semigroup ring as an algebra over another numerical semigroup ring. The complete intersection property of numerical semigroup algebras is investigated using factorizations of monomials into minimal ones. The goal is to…

Commutative Algebra · Mathematics 2018-09-03 I-Chiau Huang , Raheleh Jafari

We construct elementary subgroups of all reductive groups of the local isotropic rank $\geq 2$ over rings and prove their basic properties. In particular, our results may be applied to the automorphism groups of any finitely generated…

Group Theory · Mathematics 2026-05-08 Egor Voronetsky

This paper contains a complete proof of a fundamental theorem on the normalizers of unipotent subgroups in semisimple algebraic groups.

Algebraic Geometry · Mathematics 2007-05-23 B. Weisfeiler

In this work, free multivariate skew polynomial rings are considered, together with their quotients over ideals of skew polynomials that vanish at every point (which includes minimal multivariate skew polynomial rings). We provide a full…

Rings and Algebras · Mathematics 2019-08-20 Umberto Martínez-Peñas

A real univariate polynomial of degree $n$ is called hyperbolic if all of its $n$ roots are on the real line. Such polynomials appear quite naturally in different applications, for example, in combinatorics and optimization. The focus of…

Algebraic Geometry · Mathematics 2023-03-09 Cordian Riener , Robin Schabert

In the second section, we introduce hemiring-valued pseudonormed rings and generalize Albert's result which states that every finite-dimensional algebra can be normed. Next, we introduce shrinkable hemirings and prove that dense division…

Commutative Algebra · Mathematics 2025-08-05 Peyman Nasehpour

Curve singularities are classical objects of study in algebraic geometry. The key player in their combinatorial structure is the {\it value semigroup}, or its compactification, the {\it value semiring}. One natural problem is to explicitly…

Algebraic Geometry · Mathematics 2024-03-26 Ethan Cotterill , Cristhian Garay López

Totally symmetric sets are a recently introduced tool for studying homomorphisms between groups. In this paper, we give full classifications of totally symmetric sets in certain families of groups and bound their sizes in others. As a…

Group Theory · Mathematics 2022-03-09 Kevin Kordek , Qiao Li , Caleb Partin

For commutative rings, we introduce the notion of a {\em universal grading}, which can be viewed as the "largest possible grading". While not every commutative ring (or order) has a universal grading, we prove that every {\em reduced order}…

Commutative Algebra · Mathematics 2018-04-18 H. W. Lenstra, , A. Silverberg

This is part of an ongoing project to find a general algebraic framework for semiring theory. The structure theory of semirings is quite challenging, largely because of the lack of negation, and such basic properties such as unique…

Rings and Algebras · Mathematics 2026-03-30 Marianne Akian , Stephane Gaubert , Louis Rowen

Armendariz and semicommutative rings are generalizations of reduced rings. In \cite{IN}, I.N. Herstein introduced the notion of a hypercenter of a ring to generalize the center subclass. For a ring $R$, an element $a \in R$ is called…

Rings and Algebras · Mathematics 2025-01-07 Nazeer Ansari , Kh. Herachandra singh

In an isomorphic copy of the ring of symmetric polynomials we study some families of polynomials which are indexed by rational weight vectors. These families include well known symmetric polynomials, such as the elementary, homogeneous, and…

Combinatorics · Mathematics 2007-05-23 Trueman MacHenry , Geanina Tudose

In this article, the ring of polynomials is studied in a systematic way through the theory of monoid rings. As a consequence, this study provides natural and canonical approaches in order to find easy and rigorous proofs and methods for…

Commutative Algebra · Mathematics 2018-02-23 Abolfazl Tarizadeh

In this expositional paper, we discuss commutative algebra -- a study inspired by the properties of integers, rational numbers, and real numbers. In particular, we investigate rings and ideals, and their various properties. After, we…

Algebraic Geometry · Mathematics 2021-10-19 Marc Maliar

We present a classification of the so-called "additive symmetric 2-cocycles" of arbitrary degree and dimension over Z/p, along with a partial result and some conjectures for m-cocycles over Z/p, m > 2. This expands greatly on a result…

Commutative Algebra · Mathematics 2008-11-26 Adam Hughes , JohnMark Lau , Eric Peterson

We previously showed that the inverse limit of standard-graded polynomial rings with perfect coefficient field is a polynomial ring, in an uncountable number of variables. In this paper, we show that the same result holds with arbitrary…

Commutative Algebra · Mathematics 2022-01-27 Daniel Erman , Steven V Sam , Andrew Snowden

In the first section of the present work, we introduce the concept of pseudocomplementation for semirings and show semiring version of some known results in lattice theory. We also introduce semirings with pc-functions and prove some…

Commutative Algebra · Mathematics 2018-04-17 Peyman Nasehpour

We study symmetric arithmetic circuits and improve on lower bounds given by Dawar and Wilsenach (ArXiv 2020). Their result showed an exponential lower bound of the permanent computed by symmetric circuits. We extend this result to show a…

Computational Complexity · Computer Science 2020-09-24 Christian Engels
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