English
Related papers

Related papers: On (strongly) ($\Theta$-)discrete homogeneous spac…

200 papers

This paper is devoted to the study the $m$-point homogeneity property and the point homogeneity degree for finite metric spaces. Since the vertex sets of regular polytopes, as well as of some their generalizations, are homogeneous, we pay…

Metric Geometry · Mathematics 2024-06-13 Valerii N. Berestovskii , Yurii G. Nikonorov

The goal of these lectures is to explain speaker's results on uniqueness properties of spherical varieties. By a uniqueness property we mean the following. Consider some special class of spherical varieties. Define some combinatorial…

Algebraic Geometry · Mathematics 2009-05-30 Ivan Losev

The spaces of flattenings of a simplicial sphere played a key role in the study of existence and uniqueness of differentiable structures on a simplicial sphere. In this paper, we will establish that the spaces of flattenings of some…

Algebraic Topology · Mathematics 2022-09-14 Olakunle S Abawonse

We define strongly Gauduchon spaces and the class SG which are generalization of strongly Gauduchon manifolds in complex spaces. Comparing with the case of Kahlerian, the strongly Gauduchon space and the class SG are similar to the Kahler…

Complex Variables · Mathematics 2021-01-07 Lingxu Meng , Wei Xia

The purpose of this article is to give an exposition of topological properties of spaces of homomorphisms from certain finitely generated discrete groups to Lie groups $G$, and to describe their connections to classical representation…

Algebraic Topology · Mathematics 2016-09-28 Frederick R. Cohen , Mentor Stafa

This is a survey of the recent results and unsolved problems about locally compact homogeneous metric spaces. Mostly, homogeneous finite-dimensional $ANR$-spaces are discussed.

General Topology · Mathematics 2024-01-02 Vesko Valov

We introduce three new classes of pracompact spaces, consider their basic properties and relations with other compact-like spaces.

General Topology · Mathematics 2019-05-29 Oleg Gutik , Alex Ravsky

We define and study the properties of $\gamma^{*}$-regular and $\gamma$-normal spaces. We also continue studying $\gamma_{o}$-compact spaces defined in [5].

General Topology · Mathematics 2011-05-10 Bashir Ahmad , Sabir Hussain

All spaces are assumed to be separable and metrizable. We show that, assuming the Axiom of Determinacy, every zero-dimensional homogeneous space is strongly homogeneous (that is, all its non-empty clopen subspaces are homeomorphic), with…

General Topology · Mathematics 2020-03-03 Raphaël Carroy , Andrea Medini , Sandra Müller

This paper is devoted to the study of the $m$-point homogeneity property for the vertex sets of polytopes in Euclidean spaces. In particular, we present the classifications of $2$-point and $3$-point homogeneous polyhedra in $\mathbb{R}^3$.

Metric Geometry · Mathematics 2025-12-10 V. N. Berestovskii , Yu. G. Nikonorov

We construct a category that classifies compact Hausdorff spaces by their shape and finite topological spaces by their weak homotopy type.

Category Theory · Mathematics 2021-10-07 Pedro J. Chocano , Manuel A. Morón , Francisco R. Ruiz del Portal

We define thin and asymptotically scattered metric spaces as asymptotic counterparts of discrete and scattered metric spaces respectively. We characterize asymptotically scattered spaces in terms of prohibited subspaces, and classify thin…

Combinatorics · Mathematics 2012-12-04 Igor Protasov

We review the basic definitions and properties concerning smooth structures, convenient spaces, diffeological spaces and tangent structures. The relation betwen them is described. A tangent structure is constructed for each pre-convenient…

Differential Geometry · Mathematics 2007-05-23 Carlos A. Torre

Homotopy connectedness theorems for complex submanifolds of homogeneous spaces (sometimes referred to as theorems of Barth-Lefshetz type) have been established by a number of authors. Morse Theory on the space of paths lead to an elegant…

Differential Geometry · Mathematics 2014-09-12 Chaitanya Senapathi

It is proved that for an h-homogeneous space X the following conditions are equivalent: 1) X is a densely homogeneous space with a dense complete subspace; 2) X is $\sigma$-discretely controlled.

General Topology · Mathematics 2016-01-18 Sergey Medvedev

A theory of characteristic classes of vector bundles and smooth manifolds plays an important role in the theory of smooth manifolds. An investigation of reasonable notions of characteristic classes of singular spaces started since a…

Algebraic Geometry · Mathematics 2007-05-23 Joerg Schuermann , Shoji Yokura

Spatially homogeneous cosmological models with a positive cosmological constant are investigated, using dynamical systems methods. We focus on the future evolution of these models. In particular, we address the question whether there are…

General Relativity and Quantum Cosmology · Physics 2011-07-18 Martin Goliath , George F. R. Ellis

We introduce special classes of irreducible representations of groups: thick representations and dense representations. Denseness implies thickness, and thickness implies irreducibility. We show that absolute thickness and absolute…

Algebraic Geometry · Mathematics 2019-05-10 Kazunori Nakamoto , Yasuhiro Omoda

We extend the notion of 'homomorphism-homogeneity' to a wider class of kinds of maps than previously studied, and we investigate the relations between the resulting notions of homomorphism-homogeneity, giving several examples. We also give…

Combinatorics · Mathematics 2014-08-12 Deborah Lockett , John K. Truss

The purpose of this paper is to introduce and investigate some basic properties of mixed homogeneous Herz-Hardy spaces $H\dot{K}_{\vec{p}}^{\alpha, q}(\mathbb{R}^n)$ and mixed non-homogeneous Herz-Hardy spaces $HK_{\vec{p}}^{\alpha,…

Functional Analysis · Mathematics 2022-05-24 Yichun Zhao , Mingquan Wei , Jiang Zhou