English
Related papers

Related papers: Finding a field in a Zariski-like structure

200 papers

We classify fields having finitely many finite non-commutative (not necessarily central) division algebras over them. In the process, we introduce the notion of anti-closure of a field and also make comments on fields having a linear…

Rings and Algebras · Mathematics 2023-09-18 Snehinh Sen

We show that the Zariski closure of the set of hypersurfaces of degree $M$ in ${\mathbb P}^{M}$, where $M\geq 5$, which are either not factorial or not birationally superrigid, is of codimension at least $\binom{M-3}{2}+1$ in the parameter…

Algebraic Geometry · Mathematics 2012-10-16 Thomas Eckl , Aleksandr Pukhlikov

The strength of a homogeneous polynomial (or form) is the smallest length of an additive decomposition expressing it whose summands are reducible forms. Using polynomial functors, we show that the set of forms with bounded strength is not…

Algebraic Geometry · Mathematics 2022-05-02 Edoardo Ballico , Arthur Bik , Alessandro Oneto , Emanuele Ventura

Given a duo module $M$ over an associative (not necessarily commutative) ring $R,$ a Zariski topology is defined on the spectrum $\mathrm{Spec}^{\mathrm{fp}}(M)$ of {\it fully prime} $R$-submodules of $M$. We investigate, in particular, the…

Rings and Algebras · Mathematics 2010-07-20 Jawad Abuhlail

Here we continue to characterize a recently introduced notion, le-modules $_{R}M$ over a commutative ring $R$ with unity \cite{Bhuniya}. This article introduces and characterizes Zariski topology on the set $Spec(M)$ of all prime submodule…

Rings and Algebras · Mathematics 2018-07-12 M. Kumbhakar , A. K. Bhuniya

In this work we address the classical problem of classifying tuples of linear operators and linear functions on a finite dimensional vector space up to base change. Having adopted for the situation considered a construction of framed moduli…

Algebraic Geometry · Mathematics 2012-03-15 Stanislav Fedotov

We prove the characteristic zero case of Zilber's Restricted Trichotomy Conjecture. That is, we show that if $\mathcal M$ is any non-locally modular strongly minimal structure interpreted in an algebraically closed field $K$ of…

Logic · Mathematics 2022-09-05 Benjamin Castle

We define Lie subalgebras of the group algebra of a finite pseudo-reflection group that are involved in the definition of the Cherednik KZ-systems, and determine their structure. We provide applications for computing the Zariski closure of…

Representation Theory · Mathematics 2010-12-21 Ivan Marin

A noncommutative analogue of the Zariski cancellation problem asks whether $A[x]\cong B[x]$ implies $A\cong B$ when $A$ and $B$ are noncommutative algebras. We resolve this affirmatively in the case when $A$ is a noncommutative finitely…

Rings and Algebras · Mathematics 2017-02-22 Jason Bell , James J. Zhang

We determine the Zariski closure of the representations of the braid groups that factorize through the Birman-Wenzl-Murakami algebra, for generic values of the parameters $\alpha,s$. For $\alpha,s$ of modulus 1 and close to 1, we prove that…

Group Theory · Mathematics 2009-11-12 Ivan Marin

The purpose of this paper is to exhibit infinite families of conjugate projective curves in a number field whose complement have the same abelian fundamental group, but are non-homeomorphic. In particular, for any $d>3$ we find Zariski…

Algebraic Geometry · Mathematics 2019-11-28 Enrique Artal Bartolo , Jose I. Cogolludo-Agustin , Jorge Martín-Morales

We study Zariski cancellation problem for noncommutative algebras that are not necessarily domains.

Rings and Algebras · Mathematics 2017-11-23 O. Lezama , Y. -H. Wang , J. J. Zhang

Let $k$ be a field of characteristic zero and $B$ a commutative integral domain that is also a finitely generated $k$-algebra. It is well known that if $k$ is algebraically closed and the "Field Makar-Limanov" invariant FML$(B)$ is equal to…

Algebraic Geometry · Mathematics 2018-06-29 Daniel Daigle

We study the maximum likelihood degree of linear concentration models in algebraic statistics. We relate the geometry of the reciprocal variety to that of semidefinite programming. We show that the Zariski closure in the Grassmanian of the…

Algebraic Geometry · Mathematics 2020-12-02 Kathlen Kohn , Rosa Winter , Yuhan Jiang

We present an approach to detecting Zariski pairs in conic line arrangements. Our method introduces a combinatorial condition that reformulates the tubular neighborhood homeomorphism criterion arising in the definition of Zariski pairs.…

Algebraic Geometry · Mathematics 2026-01-05 Meirav Amram , Gal Goren

This paper provides a non-standard analogue of Bezout's theorem. This is acheived by showing that, in all characteristics, the notion of Zariski multiplicity coincides with intersection multiplicity when we consider the full families of…

Algebraic Geometry · Mathematics 2007-05-23 Tristram de Piro

Let $X$ be a variety over a complete nontrivially valued field $K$. We construct an algebraizable formal model for the analytification of $X$ in the case $X$ admits a closed embedding into a toric variety. By algebraizable we mean that the…

Algebraic Geometry · Mathematics 2023-03-27 Desmond Coles , Netanel Friedenberg

A complete classification of a class of $3$-dimensional algebras is provided. In algebraically closed field $\mathbb{F}$ case this class is an open, dense (in Zariski topology) subset of $\mathbb{F}^{27}$.

Rings and Algebras · Mathematics 2017-11-28 U. Bekbaev

We give an alternative proof, valid in all characteristics, of a result of Lascar characterising the bounded automorphisms of an algebraically closed field. We generalise this method to various fields equipped with operators.

Logic · Mathematics 2017-12-06 Thomas Blossier , Charlotte Hardouin , Amador Martin-Pizarro

We consider the Zariski space of all places of an algebraic function field $F|K$ of arbitrary characteristic and investigate its structure by means of its patch topology. We show that certain sets of places with nice properties (e.g., prime…

Commutative Algebra · Mathematics 2010-03-31 Franz-Viktor Kuhlmann