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Related papers: Between ${\cal A}$- and ${\cal B}$-sets

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The aim of this paper is two-fold. First, the study of $C_{12}$-structure (called by us corner structure) is extended to the general case without any condition, unlike our previous papers (see, \cite{BB, BG2, BG, BBB}). Second, starting…

Differential Geometry · Mathematics 2023-07-31 Beldjilali Gherici

The study of infra-topological spaces focuses on characterizations of $e^\star$-open sets and nearby open sets in infra-topological spaces. The $e^\star$-open sets, a variation of open sets, are explored for their unique properties and…

General Topology · Mathematics 2024-03-05 G. Saravanakumar , D. Jaya Priya

This paper proposes a method to use deep neural networks as end-to-end open-set classifiers. It is based on intra-class data splitting. In open-set recognition, only samples from a limited number of known classes are available for training.…

Machine Learning · Computer Science 2019-11-21 Patrick Schlachter , Yiwen Liao , Bin Yang

We construct a topology on a given algebraically closed field with a distinguished subfield which is also algebraically closed. This topology is finer than Zariski topology and it captures the sets definable in the pair of algebraically…

Logic · Mathematics 2017-06-08 Ayhan Günaydın

Staton has shown that there is an equivalence between the category of presheaves on (the opposite of) finite sets and partial bijections and the category of nominal restriction sets: see [2, Exercise 9.7]. The aim here is to see that this…

Logic in Computer Science · Computer Science 2014-01-31 Andrew M. Pitts

In this paper we systematically describe relations between various structure sets which arise naturally for pairs of compact topological manifolds with boundary. Our consideration is based on a deep analogy between the case of a compact…

Algebraic Topology · Mathematics 2009-11-24 Matija Cencelj , Yurij V. Muranov , Dušan Repovš

This paper studies algebraic residual intersections in rings with Serre's condition \( S_{s} \). It demonstrates that residual intersections admit free approaches i.e. perfect subideal with the same radical. This fact leads to determining a…

Commutative Algebra · Mathematics 2025-02-13 S. Hamid Hassanzadeh

Intersection types have been originally developed as an extension of simple types, but they can also be used for refining simple types. In this survey we concentrate on the latter option; more precisely, on the use of intersection types for…

Logic in Computer Science · Computer Science 2019-04-24 Paweł Parys

The class of intersection bigraphs of unit intervals of the real line whose ends may be open or closed is called a class of mixed unit interval bigraphs. This class of bigraphs is a strict superclass of the class of unit interval bigraphs.…

Discrete Mathematics · Computer Science 2026-05-27 Ashok Kumar Das , Rajkamal Sahu , Amina Khatun

An algebraization of the notion of topology has been proposed more than seventy years ago in a classical paper by McKinsey and Tarski. However, in McKinsey and Tarski's setting the model theoretical notion of homomorphism does not…

General Topology · Mathematics 2025-07-24 Paolo Lipparini

There are several centrality measures that have been introduced and studied for real world networks. They account for the different vertex characteristics that permit them to be ranked in order of importance in the network. Betweenness…

Combinatorics · Mathematics 2014-03-20 Sunil Kumar R , Kannan Balakrishnan , M. Jathavedan

An exterior space is a topological space provided with a quasi-filter of open subsets (closed by finite intersections). In this work, we analyze some relations between the notion of an exterior space and the notion of a discrete semi-flow.…

Dynamical Systems · Mathematics 2014-07-21 J. M. García-Calcines , L. J. Hernández , M. Marañón , M. T. Rivas

In this article, we concurrently explore the class of m-bi-ideals as well as the class of m- interior ideals in an ordered semigroup. We call these class of ideals as m-bi-interior ideals. Here, m-simple, m-regular ordered semigroups and…

Commutative Algebra · Mathematics 2022-08-11 Susmita Mallick

Among the several types of closures of an ideal $I$ that have been defined and studied in the past decades, the integral closure $\bar{I}$ has a central place being one of the earliest and most relevant. Despite this role, it is often a…

Commutative Algebra · Mathematics 2007-05-23 Alberto Corso , Craig Huneke , Wolmer V. Vasconcelos

This paper is devoted to introduce a topology on BL-algebras, makes them semitopological algebras. For any BL-algebra $\mathcal{L}=(L, \wedge, \vee, *, \to , 0, 1)$, the introduced topology is defined by a distance-like function between…

Logic · Mathematics 2022-02-25 Seyed Mohammad Amin Khatami

Model sets are always Meyer sets, but not vice-versa. This article is about characterizing model sets (general and regular) amongst the Meyer sets in terms of two associated dynamical systems. These two dynamical systems describe two very…

Metric Geometry · Mathematics 2009-10-26 Jeong-Yup Lee , Robert V. Moody

A duality between general partially ordered sets and certain topolgical spaces with two closures is established.

General Topology · Mathematics 2007-05-23 R. R. Zapatrin

In this paper we study a class of convex sets which are called closed pseudo-cones and study a new duality of this class. It turns out that the duality characterizes closed pseudo-cones and is essentially the only possible abstract duality…

Metric Geometry · Mathematics 2023-08-15 Yun Xu , Jin Li , Gangsong Leng

The aim of these notes is to introduce the intuition motivating the notion of a "complicial set", a simplicial set with certain marked "thin" simplices that witness a composition relation between the simplices on their boundary. By varying…

Category Theory · Mathematics 2016-10-24 Emily Riehl

In this article one builds a class of recursive sets, one establishes properties of these sets, and one proposes applications.

General Mathematics · Mathematics 2007-05-23 Florentin Smarandache
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