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Related papers: Complete topologized posets and semilattices

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We study the problem of topologically order-embedding a given topological poset X in the space of all closed subsets of X which is topologized by the Fell topology and ordered by set inclusion. We show that this can be achieved whenever X…

General Topology · Mathematics 2021-11-24 Gerald Beer , Efe A. Ok

We show that compact locally symmetric Lorentz manifolds are geodesically complete.

Differential Geometry · Mathematics 2025-03-12 Souheib Allout , Malek Hanounah

We study the integrability of a (almost) complex structure calibrated by a symplectic form. We find new sufficent conditions.

Symplectic Geometry · Mathematics 2014-05-26 Luigi Vezzoni

Earlier an arbitrary poset $P$ was proved to be isomorphic to the collection of subsets of a space $M$ with two closures which are closed in the first closure and open in the other. As a space $M$ for this representation an algebraic dual…

General Topology · Mathematics 2007-05-23 R. Breslav , A. Stavrova , R. R. Zapatrin

In analogy to a result due to Drake and Thron about topological spaces, this paper studies the dcpos (directed complete posets) which are fully determined, among all dcpos, by their lattices of all Scott-closed subsets (such dcpos will be…

General Topology · Mathematics 2023-06-22 Dongsheng Zhao , Luoshan Xu

This paper is one in a series that investigates topological measures on locally compact spaces. A topological measure is a set function which is finitely additive on the collection of open and compact sets, inner regular on open sets, and…

General Topology · Mathematics 2021-03-18 Svetlana V. Butler

The aim of this paper is to study the topological properties of some classes of subsemimodules endowed with a subbasis closed-set topology. We show that such spaces are $T_0$. When the semimodule is finitely generated, those spaces are…

Rings and Algebras · Mathematics 2023-03-02 Amartya Goswami

We survey some properties of homotopical and homological $Z_n$-sets in topological spaces.

Geometric Topology · Mathematics 2011-08-23 Taras Banakh , Robert Cauty , Alex Karassev

In this paper, we introduce a new type of coupled fixed point theorem in partially ordered complete metric space. We give an example to support of our result.

General Topology · Mathematics 2017-03-31 Isa Yildirim

The notion of cosilting module was recently introduced as a generalization of the concept of cotilting module. In this paper, it is introduced the notion of finitely cosilting module, i.e. a cosilting module with some finitness conditions,…

Rings and Algebras · Mathematics 2017-12-05 Flaviu Pop

We deal with equations over free semilattice of infinite rank and prove that any infinite consistent system of equations is equivalent to its finite subsystem. Moreover, we describe irreducible algebraic sets and solve some algorithmic…

Algebraic Geometry · Mathematics 2014-01-14 Artem N. Shevlyakov

In this paper we examine two basic topological properties of partial metric spaces, namely compactness and completeness. Our main result claims that in these spaces compactness is equivalent to sequential compactness. We also show that…

General Topology · Mathematics 2022-02-01 Dariusz Bugajewski , Piotr Maćkowiak , Ruidong Wang

We study the topology of complete Finsler manifolds admitting convex functions

Differential Geometry · Mathematics 2014-01-06 Sorin V. Sabau , Katsuhiro Shiohama

We apply the homomorphism complex construction to partially ordered sets, introducing a new topological construction based on the set of maximal chains in a graded poset. Our primary objects of study are distributive lattices, with special…

Combinatorics · Mathematics 2018-12-27 Benjamin Braun , Wesley K. Hough

We introduce a notion of strong proximity join-semilattice, a predicative notion of continuous lattice which arises as the Karoubi envelop of the category of algebraic lattices. Strong proximity join-semilattices can be characterised by the…

Logic in Computer Science · Computer Science 2023-06-22 Tatsuji Kawai

This is a survey of topological properties of open, complete nonpositively curved manifolds which may have infinite volume. Topics include topology of ends, restrictions on the fundamental group, as well as a review of known examples.

Differential Geometry · Mathematics 2014-08-05 Igor Belegradek

It is well-known that relatively pseudocomplemented lattices can serve as an algebraic semantics of intuitionistic logic. To extend the concept of relative pseudocomplementation to non-distributive lattices, the first author introduced…

Logic · Mathematics 2021-08-24 Ivan Chajda , Helmut Länger

We study the model theoretic strength of various lattices that occur naturally in topology, like closed (semi-linear or semi-algebraic or convex) sets. The method is based on weak monadic second order logic and sharpens previous results by…

Logic · Mathematics 2018-07-26 Marcus Tressl

We give a counterexample to a conjecture made by Cigler, Jerman and Wojciechowski stating that all posets are conclusive. We also provide combinatorial characterizations for conclusiveness of finite posets and the existence of outer…

Combinatorics · Mathematics 2026-01-26 Bekir Danış , İsmail Alperen Öğüt

Let $L$ be a planar semimodular lattice. We call $L$ \emph{slim}, if it has no $\mthree$ sublattice. Let us define an \emph{SPS lattice} as a slim, planar, semimodular lattice $L$. In 2016, I proved a property of congruences of SPS lattices…

Rings and Algebras · Mathematics 2023-03-02 George Grätzer