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In this paper, we contribute toward a classification of two-variable polynomials by classifying (up to an automorphism of $C^2$) polynomials whose Newton polygon is either a triangle or a line segment. Our classification has several…

Algebraic Geometry · Mathematics 2007-05-23 Vladimir Shpilrain , Jie-Tai Yu

We consider the general circumstance of an Azumaya algebra $A$ of degree $n$ over a locally ringed topos $(\mathbf{X}, {\mathcal{O}}_{\mathbf{ X}})$ where the latter carries a (possibly trivial) involution, denoted $\lambda$. This…

Algebraic Geometry · Mathematics 2020-07-20 Uriya A. First , Ben Williams

Let $(K,M)$ be a pair satisfying some mild condition, where $K$ is a class of $R$-modules and $M$ is a class of $R$-homomorphisms. We show that if $f:A\rightarrow B$ and $g:B\rightarrow A$ are $M$-embeddings and $A,B$ are $K_M$-injective,…

Rings and Algebras · Mathematics 2024-09-13 Xiaolei Zhang

The problem of whether a metabolic idempotent of a central simple algebra with involution is contained in an invariant quaternion subalgebra is investigated. As an application, the similar problem is studied for skew-symmetric elements…

Rings and Algebras · Mathematics 2016-07-12 Amir Hossein Nokhodkar

Neural network models often face challenges when processing very small or very large numbers due to issues such as overflow, underflow, and unstable output variations. To mitigate these problems, we propose using embedding vectors for…

Machine Learning · Computer Science 2026-01-21 Hamidreza Sadeghi , Saeedeh Momtazi , Reza Safabakhsh

The concept of quasi-isometric embedding maps between $*$-algebras is introduced. We have obtained some basic results related to this notion and similar to quasi-isometric embedding maps on metric spaces, under some conditions, we give a…

Functional Analysis · Mathematics 2026-04-10 Ali Ebadian , Ali Jabbari

The dichotomy conjecture for the parameterized embedding problem states that the problem of deciding whether a given graph $G$ from some class $K$ of "pattern graphs" can be embedded into a given graph $H$ (that is, is isomorphic to a…

Computational Complexity · Computer Science 2017-03-21 Yijia Chen , Martin Grohe , Bingkai Lin

Given a Boolean algebra B and an embedding e:B -> P(N)/fin we consider the possibility of extending each or some automorphism of B to the whole P(N)/fin. Among other things, we show, assuming CH, that for a wide class of Boolean algebras…

Logic · Mathematics 2024-08-27 A. Bella , A. Dow , K. P. Hart , M. Hrusak , J. van Mill , P. Ursino

It is shown how to embed the polydisk algebras (finite and infinite ones) into the disk algebra $A(\overline{\mathbb D})$. As a consequence, one obtains uniform closed subalgebras of $A(\overline{\mathbb D})$ which have arbitrarily…

Complex Variables · Mathematics 2014-10-24 Raymond Mortini

In earlier work we developed the theory of signatures of hermitian forms over algebras with involution with respect to orderings on the base field of the algebra and obtained in particular that the total signature of a hermitian form is a…

Rings and Algebras · Mathematics 2016-06-21 Vincent Astier , Thomas Unger

In this paper, we study structure theorems of algebras of symmetric functions. Based on a certain relation on elementary symmetric polynomials generating such algebras, we consider perturbation in the algebras. In particular, we understand…

Rings and Algebras · Mathematics 2015-12-01 Ryan Golden , Ilwoo Cho

It is shown that if A is an AF algebra then a crossed product of A by the integers can be embedded into an AF algebra if and only if the crossed product is stably finite. This equivalence follows from a simple K-theoretic characterization…

funct-an · Mathematics 2007-05-23 Nathanial P. Brown

$G$ be a finite group and $A$ a $G$-graded algebra over a field $F$ of characteristic zero. We characterize the varieties of $G$-graded algebras such that the multiplicities $m_{\langle \lambda \rangle}$ appering in the $\langle n \rangle…

Rings and Algebras · Mathematics 2025-10-07 R. B. dos Santos , A. C Vieira , R. F. D. N. Vieira

We consider the functions in two variables on an arbitrary poset, for which the convolution operation is defined. We obtain the generalization of incidence algebra and describe its properties: invertibility, the Jackobson radical,…

Rings and Algebras · Mathematics 2008-03-04 N. S. Khripchenko , B. V. Novikov

The embedding theorem arises in several problems from analysis and geometry. The purpose of this paper is to provide a deeper understanding of analysis and geometry with a particular focus on embedding theorems on spaces of homogeneous type…

Classical Analysis and ODEs · Mathematics 2016-01-25 Yanchang Han , Yongsheng Han , Ji Li

We classify all two-dimensional simple algebras (which may be non-associative) over an algebraically closed field. For each two-dimensional algebra $\mathcal{A}$, we describe a minimal (with respect to inclusion) generating set for the…

Rings and Algebras · Mathematics 2025-04-21 María Alejandra Alvarez , Artem Lopatin

Let $k$ be a complete non-archimedean non-trivial valued field. In this paper, we investigate whether every $k$-algebra homomorphism between $k$-affinoid algebras is automatically bounded. We show that this property holds if and only if…

Algebraic Geometry · Mathematics 2025-05-27 Shou Yoshikawa

This short note provides positive answers to two conjectures of Camacho, Khudoyberdiyev, and Omirov on the classification of complete evolution algebras. Our approach is based on analysing the solution set of a generic non-linear polynomial…

Rings and Algebras · Mathematics 2025-12-16 Xabier García-Martínez , Andrés Pérez-Rodríguez

In this survey we present applications of the ideas of complement and neighborhood in the theory embeddings of manifolds into Euclidean space (in codimension at least three). We describe how the combination of these ideas gives a reduction…

Geometric Topology · Mathematics 2021-04-06 M. Cencelj , D. Repovš , A. Skopenkov

In this article, we introduce a relation including ideals of an evolution algebra and hereditary subsets of vertices of its associated graph and establish some properties among them. This relation allows us to determine maximal ideals and…

Commutative Algebra · Mathematics 2023-03-30 Yolanda Cabrera Casado , Dolores Martín Barquero , Cándido Martín González , Alicia Tocino