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Related papers: On $e^*$-topological Rings

200 papers

This paper aims to provide a careful and self-contained introduction to the theory of topological degree in Euclidean spaces. It is intended for people mostly interested in analysis and, in general, a heavy background in algebraic or…

Functional Analysis · Mathematics 2023-04-14 Pierluigi Benevieri , Massimo Furi , Maria Patrizia Pera , Marco Spadini

Infinite loop space theory, both additive and multiplicative, arose largely from two basic motivations. One was to solve calculational questions in geometric topology. The other was to better understand algebraic K-theory. The Adams…

Algebraic Topology · Mathematics 2009-03-17 J. P. May

This paper introduces a novel class of topological spaces, termed SC*-regular spaces, which are defined using SC*-open sets. We explore their fundamental properties and examine their connections with existing regularity concepts, such as…

General Topology · Mathematics 2025-05-16 Neeraj Kumar Tomar , Amit Ujlayan , M. C. Sharma

Given a ring R, we investigate tilting modules of the form S \oplus S/R for some injective ring epimorphism R \to S. In particular, we are interested in tilting modules arising from Schofield's universal localization. For some rings, in…

Representation Theory · Mathematics 2008-04-09 Lidia Angeleri Hügel , Javier Sánchez

The general theory of Grothendieck categories is presented. We systemize the principle methods and results of the theory, showing how these results can be used for studying rings and modules.

Category Theory · Mathematics 2007-05-23 Grigory Garkusha

The set of open subsets in a proximity space (X,{\zeta}) forms a topological system that enables the definition of proximal and descriptive topological groups. This framework naturally extends to proximal and descriptive topological rings…

Algebraic Topology · Mathematics 2025-09-03 Maram Almahariq

Notions of topological free entropy and of free capacity are introduced in the $C^*$-algebra context. Basic properties, basic problems and connections to potential theory and random matrix theory are discussed.

Operator Algebras · Mathematics 2007-05-23 Dan Voiculescu

The object of this paper is the tameness conjecture which describes an arbitrary graded k-algebra homomorphism of polytopal rings. We give further evidence of this conjecture by showing supporting results concerning joins, multiples and…

Commutative Algebra · Mathematics 2012-10-02 Viveka Erlandsson

The purpose of this paper is to formulate a number of conjectures giving a rather complete description of the tautological ring of M_g and to discuss the evidence for these conjectures.

Algebraic Geometry · Mathematics 2009-09-25 Carel F. Faber

In this paper, in the first we give definitions of some classes of division rings which strictly contain the class of centrally finite division rings. One of our main purpose is to construct non-trivial examples of rings of new defined…

Rings and Algebras · Mathematics 2011-03-16 Bui Xuan Hai , Mai Hoang Bien , Trinh Thanh Deo

In this paper, we introduce the concept of $S$-B\'ezout ring, as a generalization of B\'ezout ring. We investigate the relationships between $S$-B\'ezout and other related classes of rings. We establish some characterizations of…

Commutative Algebra · Mathematics 2024-05-02 Mohamed Chhiti , Salah Eddine Mahdou , Moutu Abdou Salam Moutui

This paper aims to study the notion of $e^*\text{-}\theta$-open \cite{Ozkoc1} sets and to investigate new properties of this notion. Also, we define a new type of set, called $e^*\text{-}\theta\text{-}D$-set, via the notion of…

General Topology · Mathematics 2024-03-05 D. Akalın , M. Özkoç

Motivated by algebraic quantum field theory and our previous work we study properties of inductive systems of \ $C^*$-algebras over arbitrary partially ordered sets. A partially ordered set can be represented as the union of the family of…

Operator Algebras · Mathematics 2019-03-27 Renat Gumerov , Ekaterina Lipacheva , Tamara Grigoryan

D. K. Biss (Topology and its Applications 124 (2002) 355-371) introduced the topological fundamental group and presented some interesting basic properties of the notion. In this article we intend to extend the above notion to homotopy…

Algebraic Topology · Mathematics 2011-02-02 Helen Ghane , Zainab Hamed , Behrooz Mashayekhy , Hanieh Mirebrahimi

Recent development of network structure analysis shows that it plays an important role in characterizing complex system of many branches of sciences. Different from previous network centrality measures, this paper proposes the notion of…

Information Retrieval · Computer Science 2009-02-12 Hai Zhuge , Junsheng Zhang

In this paper, a theory of quandle rings is proposed for quandles analogous to the classical theory of group rings for groups, and interconnections between quandles and associated quandle rings are explored.

Group Theory · Mathematics 2021-07-22 Valeriy G. Bardakov , Inder Bir Singh Passi , Mahender Singh

We compute K-theory for ring C*-algebras in the case of higher roots of unity and thereby completely determine the K-theory for ring C*-algebras attached to rings of integers in arbitrary number fields.

Operator Algebras · Mathematics 2025-04-08 Xin Li , Wolfgang Lück

We examine the various linkings in space-time of ``ball-like'' and ``ring-like'' topological solitons in certain nonlinear sigma models in 2+1 and 3+1 dimensions. By going to theories where soliton overlaps are forbidden, these linkings…

High Energy Physics - Theory · Physics 2009-10-22 Lee Brekke , Shane J. Hughes , Tom D. Imbo

We associate reduced and full C*-algebras to arbitrary rings and study the inner structure of these ring C*-algebras. As a result, we obtain conditions for them to be purely infinite and simple. We also discuss several examples.…

Operator Algebras · Mathematics 2009-06-01 Xin Li

Gorenstein rings are important to mathematical areas as diverse as algebraic geometry, where they encode information about singularities of spaces, and homotopy theory, through the concept of model categories. In consequence, the study of…

Rings and Algebras · Mathematics 2007-05-23 Peter Jorgensen