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The purpose of this paper is to introduce a Zariski-like topology on the spectrum of all proper ideals of a ring. We show that the space is T_0, quasi-compact, and every irreducible closed subset has a unique generic point. Furthermore,…

Commutative Algebra · Mathematics 2022-03-22 Amartya Goswami

A semigroup prime of a commutative ring $R$ is a prime ideal of the semigroup $(R,\cdot)$. One of the purposes of this paper is to study, from a topological point of view, the space $\scal(R)$ of prime semigroups of $R$. We show that, under…

Commutative Algebra · Mathematics 2017-03-30 Carmelo A. Finocchiaro , Marco Fontana , Dario Spirito

Since Hochster's work, spectral spaces have attracted increasing interest. Through this note we intend to show that the set of proper ideals of a ring endowed with coarse lower topology is a spectral space.

Commutative Algebra · Mathematics 2024-08-21 Amartya Goswami

In this paper, new algebraic and topological results on purely-prime ideals of a commutative ring (pure spectrum) are obtained. Especially, Grothendieck type theorem is obtained which states that there is a canonical correspondence between…

Commutative Algebra · Mathematics 2020-06-30 Abolfazl Tarizadeh , Mohsen Aghajani

Let R be an associative ring with identity. We study an elementary generalization of the classical Zariski topology, applied to the set of isomorphism classes of simple left R-modules (or, more generally, simple objects in a complete…

Rings and Algebras · Mathematics 2007-05-23 Edward S. Letzter

In the present survey paper, we present several new classes of Hochster's spectral spaces "occurring in nature", actually in multiplicative ideal theory, and not linked to or realized in an explicit way by prime spectra of rings. The…

Commutative Algebra · Mathematics 2015-10-16 Carmelo A. Finocchiaro , Marco Fontana , Dario Spirito

The set of all maximal ideals of the ring $\mathcal{M}(X,\mathcal{A})$ of real valued measurable functions on a measurable space $(X,\mathcal{A})$ equipped with the hull-kernel topology is shown to be homeomorphic to the set $\hat{X}$ of…

Functional Analysis · Mathematics 2018-06-11 Sudip Kumar Acharyya , Sagarmoy Bag , Joshua Sack

We consider properties and applications of a new topology, called the Zariski topology, on the space ${\rm SStar}(A)$ of all the semistar operations on an integral domain $A$. We prove that the set of all overrings of $A$, endowed with the…

Commutative Algebra · Mathematics 2014-04-15 C. A. Finocchiaro , D. Spirito

The aim of this paper is to study the topological properties of algebraic sets with zero divisors. We impose a subbasic topology on the set of proper ideals of a $k$-algebra and this new ``$k$-space'' becomes a generalization of the…

Algebraic Geometry · Mathematics 2024-10-02 Amartya Goswami

In this note we prove that the reproducing kernel of a Hilbert space satisfying the division property has integrable form, is locally of trace class, and the Hilbert space itself is a Hilbert space of holomorphic functions.

Functional Analysis · Mathematics 2018-12-10 Alexander I. Bufetov , Roman V. Romanov

The injective spectrum is a topological space associated to a ring $R$, which agrees with the Zariski spectrum when $R$ is commutative noetherian. We consider injective spectra of right noetherian rings (and locally noetherian Grothendieck…

Rings and Algebras · Mathematics 2019-08-19 Harry Gulliver

A framework is developed to describe the Zariski topologies on the prime and primitive spectra of a quantum algebra $A$ in terms of the (known) topologies on strata of these spaces and maps between the collections of closed sets of…

Quantum Algebra · Mathematics 2013-11-04 K. A. Brown , K. R. Goodearl

A compact topological space X is spectral if it is sober (i.e., every irreducible closed set is the closure of a unique singleton) and the compact open subsets of X form a basis of the topology of X, closed under finite intersections.…

Rings and Algebras · Mathematics 2017-12-01 Friedrich Wehrung

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

We study the topological spectrum of a seminormed ring $R$ which we define as the space of prime ideals $\mathfrak{p}$ such that $\mathfrak{p}$ equals the kernel of some bounded power-multiplicative seminorm. For any seminormed ring $R$ we…

Algebraic Geometry · Mathematics 2022-10-04 Dimitri Dine

Using a new definition of a prime ideal of a skew brace A, on set Spec A of prime ideals of A we endow a spectral topology (in the sense of Grothendieck). We characterize irreducible closed subsets of Spec A and prove every irreducible…

Rings and Algebras · Mathematics 2025-04-29 Themba Dube , Amartya Goswami

Given an arbitrary spectral space $X$, we consider the set ${\boldsymbol{\mathcal{X}}}(X)$ of all nonempty subsets of $X$ that are closed with respect to the inverse topology. We introduce a Zariski-like topology on…

General Topology · Mathematics 2018-06-01 Carmelo A. Finocchiaro , Marco Fontana , Dario Spirito

Can we do a topological study of various classes of normal subgroups endowed with a hull-kernel-type topology? In this paper, we have provided an answer to this question. We have introduced as well a new class of normal subgroups called…

Group Theory · Mathematics 2024-08-21 Amartya Goswami

In this paper we prove a strong version of the Hilbert Nullstellensatz in the ring $\mathbb H[q_1,\ldots,q_n]$ of slice regular polynomials in several quaternionic variables. Our proof deeply depends on a detailed analysis of the common…

Complex Variables · Mathematics 2025-09-16 Anna Gori , Giulia Sarfatti , Fabio Vlacci

We prove that the set of proper ideals of a monoid endowed with coarse lower topology is a spectral space.

Rings and Algebras · Mathematics 2025-04-29 Amartya Goswami
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