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Let $\mathfrak{g}$ be a complex semisimple Lie algebra, $\mathfrak{b}$ be a Borel subalgebra of $\mathfrak{g}$, $\mathfrak{n}$ be the nilradical of $\mathfrak{b}$, and $U(\mathfrak{n})$ be the universal enveloping algebra of $\mathfrak{n}$.…

Representation Theory · Mathematics 2020-07-28 Mikhail V. Ignatyev , Aleksandr A. Shevchenko

In this paper we study the set of prime ideals in vector lattices and how the properties of the prime ideals structure the vector lattice in question. The different properties that will be considered are firstly, that all or none of the…

Commutative Algebra · Mathematics 2021-04-23 Marko Kandić , Mark Roelands

In the article "Non-commutative Grobner bases for commutative algebras", Eisenbud-Peeva-Sturmfels proved a number of results regarding Grobner bases and initial ideals of those ideals in the free associative algebra which contain the…

Commutative Algebra · Mathematics 2007-05-23 Andreas Nilsson , Jan Snellman

Let A be a Noetherian ring and B be a finitely generated A-algebra. Denote by A' the integral closure of A in B. We give necessary and sufficient conditions for prime ideals to be in Ass_{A}(B/A') and Ass_{A'}(B/A') generalizing and…

Commutative Algebra · Mathematics 2021-10-27 Antoni Rangachev

Let R be a commutative ring with identity and N(R) be the set of all nilpotent elements of R. The aim of this paper is to introduce and study the notion of nil-prime ideals as a generalization of prime ideals. We say that a proper ideal P…

Commutative Algebra · Mathematics 2025-05-06 Faranak Farshadifar

This paper is the fourth and last in the series "On the classification of primitive ideals for complex classical Lie algebras", extending earlier results in other classical types to type D. The generalized tau-invariant used in earlier work…

Representation Theory · Mathematics 2023-09-26 William McGovern , Thomas Pietraho

We construct a non-separable C*-algebra that is prime but not primitive.

Operator Algebras · Mathematics 2007-05-23 Nik Weaver

We give a classification of $1$-primitive near-rings using sandwich centralizer near-rings

Rings and Algebras · Mathematics 2015-01-09 Gerhard Wendt

We show that a minimal ideal of a finite-dimensional Lie algebra is either simple or abelian.

Rings and Algebras · Mathematics 2020-07-10 Donald W. Barnes

In this paper we introduce a new and large family of configurations whose toric ideals possess quadratic Groebner bases. As an application, a generalization of algebras of Segre-Veronese type will be studied.

Commutative Algebra · Mathematics 2008-09-23 Satoshi Aoki , Takayuki Hibi , Hidefumi Ohsugi , Akimichi Takemura

We study the primitive recursive analogue of computable categoricity spectra for various natural classes of structures. We show that these notions coincide for all relatively $\Delta_{2}^{0}$-categorical equivalence structures and linear…

Logic · Mathematics 2026-03-10 Nikolay Bazhenov , Heer Tern Koh , Keng Meng Ng

Given a locally compact \'etale groupoid and an ideal $I$ in its groupoid C$^*$-algebra, we show that $I$ defines a family of ideals in group C$^*$-algebras of the isotropy groups and then study to which extent $I$ is determined by this…

Operator Algebras · Mathematics 2024-06-03 Johannes Christensen , Sergey Neshveyev

We introduce a very natural topology on the set of total orderings of monomials of any algebra having a countable basis over a field. This topological space and some notable subspaces are compact. This topological framework allows us to…

Rings and Algebras · Mathematics 2011-06-02 Roberto Boldini

An ideal in a polynomial ring encodes a system of linear partial differential equations with constant coefficients. Primary decomposition organizes the solutions to the PDE. This paper develops a novel structure theory for primary ideals in…

Commutative Algebra · Mathematics 2020-11-20 Yairon Cid-Ruiz , Roser Homs , Bernd Sturmfels

We classify open maximal subalgebras of all infinite-dimensional linearly compact simple Lie superalgebras. This is applied to the classification of infinite-dimensional Lie superalgebras of vector fields, acting transitively and…

Quantum Algebra · Mathematics 2014-01-17 Nicoletta Cantarini , Victor Kac

Noetherian operators are differential operators that encode primary components of a polynomial ideal. We develop a framework, as well as algorithms, for computing Noetherian operators with local dual spaces, both symbolically and…

Algebraic Geometry · Mathematics 2020-06-25 Justin Chen , Marc Härkönen , Robert Krone , Anton Leykin

Given an affine algebraic variety V and a quantization A of its coordinate ring, it is conjectured that the primitive ideal space of A can be expressed as a topological quotient of V. Evidence in favor of this conjecture is discussed, and…

Quantum Algebra · Mathematics 2007-05-23 K. R. Goodearl

We prove a one-to-one correspondence between the operadic ideals of the operad $\As$ and $T$-ideals. As a consequence, we show that $\As$ is noetherian and that every proper operadic ideal of $\ias$ is generated by a single element.

Rings and Algebras · Mathematics 2023-11-28 Y. -H. Bao , J. -N. Xu , Y. Ye , J. J. Zhang , Y. -F. Zhang

A brief survey of some aspects of noetherian Hopf algebras is given, concentrating on structure, homology, and classification, and accompanied by a panoply of open problems.

Rings and Algebras · Mathematics 2012-01-24 K. R. Goodearl

Following the structure theory approach for rings, the aim of this paper is to study some distinguished classes of Lie algebras. We introduce the notion of a Lie-module and discuss some relations of it with various classes of ideals of a…

Rings and Algebras · Mathematics 2024-07-08 Amartya Goswami