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Related papers: Some loose ends on unbounded order convergence

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Let $x_\alpha$ be a net in a locally solid vector lattice $(X,\tau)$; we say that $x_\alpha$ is unbounded $\tau$-convergent to a vector $x\in X$ if $\lvert x_\alpha-x \rvert\wedge w \xrightarrow{\tau} 0$ for all $w\in X_+$. In this paper,…

Functional Analysis · Mathematics 2017-06-21 Y. A. Dabboorasad , E. Yu. Emelyanov , M. A. A. Marabeh

A net $x_\alpha$ in a lattice-normed vector lattice $(X,p,E)$ is unbounded $p$-convergent to $x\in X$ if $p(|x_\alpha-x|\wedge u)\xrightarrow{o} 0$ for every $u\in X_+$. This convergence has been investigated recently for…

Functional Analysis · Mathematics 2017-11-16 A. Aydın , E. Yu. Emelyanov , N. Erkurşun Özcan , M. A. A. Marabeh

We show that, for a class of locally solid topologies on vector lattices, a topologically convergent net has an embedded sequence that is unbounded order convergent to the same limit. Our result implies, and often improves, many of the…

Functional Analysis · Mathematics 2024-03-25 Yang Deng , Marcel de Jeu

We consider vector lattices endowed with locally solid convergence structures, which are not necessarily topological. We show that such a convergence is defined by the convergence to $0$ on the positive cone. Some results on unbounded…

Functional Analysis · Mathematics 2024-03-13 Eugene Bilokopytov

We investigate the construction of a Hausdorff uo-Lebesgue topology on a vector lattice from a Hausdorff (o)-Lebesgue topology on an order dense ideal, and what the properties of the topologies thus obtained are. When the vector lattice has…

Functional Analysis · Mathematics 2021-07-13 Yang Deng , Marcel de Jeu

We study uO convergence on infinitely distributive lattices, extending key properties known from Riesz spaces. We show that order continuity of uO convergence characterizes infinite distributivity. We examine O-adherence and uO adherence of…

Functional Analysis · Mathematics 2025-06-12 Abela Kevin , Chetcuti Emmanuel

We revisit Bourgain's 1981 counterexample to the sequential completeness of the `pointwise plus domination' convergence on $\ell_1$ from the perspective of vector lattices. In this setting, we show that for sequences the associated notion…

Functional Analysis · Mathematics 2026-03-20 Tomasz Kania , Jarosław Swaczyna

For vector lattices $E$ and $F$, where $F$ is Dedekind complete and supplied with a locally solid topology, we introduce the corresponding locally solid absolute strong operator topology on the order bounded operators $\mathcal…

Functional Analysis · Mathematics 2023-05-31 Yang Deng , Marcel de Jeu

A net $(x_\gamma)_{\gamma\in\Gamma}$ in a locally solid Riesz space $(X,\tau)$ is said to be unbounded $\tau$-convergent to $x$ if $|x_\gamma-x|\wedge u\mathop{\overset{\tau}{\longrightarrow}} 0$ for all $u\in X_+$. We recall that there is…

Functional Analysis · Mathematics 2022-09-21 Kevin Abela , Emmanuel Chetcuti , Hans Weber

We introduce and study the class of almost limited sets in Banach lattices, that is, sets on which every disjoint weak$^{*}$ null sequence of functionals converges uniformly to zero. It is established that a Banach lattice has order…

Functional Analysis · Mathematics 2013-09-10 Jin Xi Chen , Zi Li Chen , Guo Xing Ji

In this note, we show that the order convergence in a vector lattice $X$ is not topological unless $\dim X<\infty$. Furthermore, we show that, in atomic order continuous Banach lattices, the order convergence is topological on order…

Functional Analysis · Mathematics 2017-05-30 Y. A. Dabboorasad , E. Y. Emelyanov , M. A. A. Marabeh

In the category \(\mathbf{V}\) of unital archimedean vector lattices, four notions of uniform completeness obtain. In all cases completeness requires the convergence of uniformly Cauchy sequences; the completions are distinguished by the…

Functional Analysis · Mathematics 2024-12-11 R. N. Ball , A. W. Hager

The full lattice convergence on a locally solid Riesz space is an abstraction of the topological, order, and relatively uniform convergences. We investigate four modifications of a full convergence $\mathbb{c}$ on a Riesz space. The first…

Functional Analysis · Mathematics 2020-11-30 Abdullah Aydın , Eduard Emelyanov , Svetlana Gorokhova

Relatively uniformly continuous (ruc) semigroups were recently introduced and studied by Kandi\'c, Kramar-Fijav\v{z}, and the second-named author, in order to make the theory of one-parameter operator semigroups available in the setting of…

Functional Analysis · Mathematics 2023-08-30 Jochen Glück , Michael Kaplin

This paper introduces statistical order convergence and its pointwise variant for sequences of order bounded operators between Riesz spaces. We establish fundamental properties: uniqueness of the limit, stability under lattice operations,…

Functional Analysis · Mathematics 2025-12-30 Abdullah Aydın , Erdal Bayram , İshak Aydın

Given a Schauder basic sequence $(x_k)$ in a Banach lattice, we say that $(x_k)$ is bibasic if the expansion of every vector in $[x_k]$ converges not only in norm, but also in order. We prove that, in this definition, order convergence may…

Functional Analysis · Mathematics 2019-07-18 M. A. Taylor , V. G. Troitsky

Building on the notion of normed category as suggested by Lawvere, we introduce notions of Cauchy convergence and cocompleteness which differ from proposals in previous works. Key to our approach is to treat them consequentially as…

Category Theory · Mathematics 2026-04-08 Maria Manuel Clementino , Dirk Hofmann , Walter Tholen

In this paper, we deal with a notion of Banach space-valued mappings defined on a set consisting of finite graphs with uniformly bounded vertex degree. These functions will be endowed with certain boundedness and additivity criteria. We…

Combinatorics · Mathematics 2015-01-14 Felix Pogorzelski

We prove a fundamental property: the free vector lattice $FVL[E]$ over a Banach space E is order dense in the free p-convex Banach lattice $FBL^{(p)}[E],~~1 ^leq p \leq \infty,$ if and only if E is finite-dimensional. In a recent work,…

Functional Analysis · Mathematics 2025-08-19 Youssef Azouzi , Wassim Dhifaoui

We present several characterizations of uo-convergent nets or sequences in spaces of continuous functions $C(\Omega)$, $C_b(\Omega)$, $C_0(\Omega)$, and $C^\infty(\Omega)$, extending results of [vdW18]. In particular, it is shown that a…

Functional Analysis · Mathematics 2021-10-19 Eugene Bilokopytov , Vladimir G. Troitsky