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We discuss further the dynamics of n-expansive homeomorphisms with the shadowing property, started in [7]. The L-shadowing property is defined and the dynamics of n-expansive homeomorphisms with such property is explored. In particular, we…

动力系统 · 数学 2024-10-22 Bernardo Carvalho , Welington Cordeiro

We discuss some structural properties of finitely generated shift-invariant (FGSI) spaces and subspaces of Sobolev spaces, particularly those related to convolution and the product within these spaces. We find shift-invariant solutions in…

泛函分析 · 数学 2025-05-02 Aleksandar Aksentijević , Suzana Aleksić , Stevan Pilipović

Based on the success of a well-known method for solving higher order linear differential equations, a study of two of the most important mathematical features of that method, viz. the null spaces and commutativity of the product of…

泛函分析 · 数学 2023-12-12 Richard Kadison , Simon Levin , Zhe Liu

We survey tensor products of lattices with zero and related constructions focused on two topics: amenable lattices and box products.

综合数学 · 数学 2016-08-16 George Grätzer , Friedrich Wehrung

In this paper, we study the tensor structure of category of finite dimensional representations of Drinfeld quantum doubles $D(H_n(q))$ of Taft Hopf algebras $H_n(q)$. Tensor product decomposition rules for all finite dimensional…

表示论 · 数学 2016-03-29 Hui-Xiang Chen , Hassen Suleman Esmael Mohammed , Hua Sun

Let $(X, d)$ be an ultrametric space and let $d_H$ be the Hausdorff distance on the set $\bar{\mathbf{B}}_X$ of all closed balls in $(X, d)$. Some interconnections between the properties of the spaces $(X, d)$ and $(\bar{\mathbf{B}}_X,…

一般拓扑 · 数学 2025-09-03 Oleksiy Dovgoshey

We study the Disc-structure space $S^{\rm Disc}_\partial(M)$ of a compact smooth manifold $M$. Informally speaking, this space measures the difference between $M$, together with its diffeomorphisms, and the diagram of ordered framed…

代数拓扑 · 数学 2024-12-18 Manuel Krannich , Alexander Kupers

We investigate preservation of the Lindel\"of property of topological spaces under forcing extensions. We give sufficient conditions for a forcing notion to preserve several strengthenings of the Lindel\"of property, such as indestructible…

一般拓扑 · 数学 2010-11-10 Masaru Kada

Some boundedness properties of function spaces (considered as topological groups) are studied.

一般拓扑 · 数学 2017-10-31 L'ubica Holá , Ljubiša D. R. Kočinac

The class of the Riemannian almost product manifolds with nonintegrable structure is considered. Some identities for curvature tensor as certain invariant tensors and quantities are obtained.

微分几何 · 数学 2009-07-14 Dimitar Mekerov

We provide both a spectral and an internal characterizations of arbitrary I-favorable spaces with respect to co-zero sets. As a corollary we establish that any product of compact I-favorable spaces with respect to co-zero sets is also…

一般拓扑 · 数学 2015-03-17 Vesko Valov

For a given compact Hausdorff space $X$, we construct the space $OS_{f}(X)$ of normed, order-preserving, weakly additive, positively homogeneous and semi-additive functionals (for brevity, semi-additive functionals) and it is proved that…

一般拓扑 · 数学 2020-11-13 Kh. ~Kh. ~Kurbanov , A. ~Ya. ~Ishmetov

We study the relation of $L$-equivalence, which derives from the construction of the free locally convex spaces, through a concept that particularizes several notions related to the simultaneous extension of continuous functions. We also…

一般拓扑 · 数学 2020-06-24 Rodrigo Hidalgo Linares , Oleg Okunev

In this short note we present several infinite dimensional theorems which generalize corresponding facts from the finite dimensional differential inclusions theory.

泛函分析 · 数学 2021-07-19 Evgenii Borisenko , Oleg Zubelevich

We study some topological properties of maximal ideal spaces of certain algebras of almost periodic functions. Our main result is that such spaces are contractible. We present certain corollaries of this result.

泛函分析 · 数学 2007-05-23 A. Brudnyi

We consider the class of profinite diffeological spaces, that is, diffeological spaces which diffeologies are deduced by pull-back of diffeologies on finite-dimensional manifolds through a system of projection mappings. This class includes…

微分几何 · 数学 2025-10-29 Anahita Eslami-Rad , Jean-Pierre Magnot , Enrique G. Reyes

In this paper we further explore the L-shadowing property defined in [17] for dynamical systems on compact spaces. We prove that structurally stable diffeomorphisms and some pseudo-Anosov diffeomorphisms of the two-dimensional sphere…

动力系统 · 数学 2024-10-22 A. Artigue , B. Carvalho , W. Cordeiro , J. Vieitez

We introduce noncommutative weak Orlicz spaces associated with a weight and study their properties. We also define noncommutative weak Orlicz-Hardy spaces and characterize their dual spaces.

算子代数 · 数学 2021-09-17 Turdebek N. Bekjan , Madi Raikhan

A space $ X $ is said to be set star-Lindel\"{o}f (resp., set strongly star-Lindel\"{o}f) if for each nonempty subset $ A $ of $ X $ and each collection $ \mathcal{U} $ of open sets in $ X $ such that $ \overline{A} \subseteq \bigcup…

综合数学 · 数学 2021-06-30 Sumit Singh

A Lambda (Card Lambda > aleph)-product space of {0,1} has a partition {X1,...,Xn} for any n a decomposition space of each Xi of which is self-similar.(February 16, 2015)

一般拓扑 · 数学 2015-02-19 Akihiko Kitada , Shousuke Ohmori , Tomoyuki Yamamoto