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20082025
most citedOn homotopical and homological -sets

4 citations · 7 across the 10 of their papers we have counts for

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math.GN2025

On structural numbers of topological spaces

Vitalij Chatyrko, Alexandre Karassev

Zero-dimensional structural numbers and w.r.t. dimensions and were introduced by Georgiou, Hattori, Megariti…

math.GN2024

From homogeneity to discrete homogeneity

Vitalij A. Chatyrko, Alexandre Karassev

This is a survey of recent and classical results concerning various types of homogeneity, such as n-homogeneity, discrete homogeneity, and countable dense homogeneity. Some new res…

math.GN2023

On generalized -continua

A. Karassev, P. Krupski, V. Todorov +1

The notion of a -continuum was introduced by Alexandroff \cite{ps} as a generalization of the concept of -manifold. In this note we consider the cohomological analogue of $…

math.GN2023

Homogeneous spaces not separated by arcs

Alexandre Karassev, Vesko Valov

It was shown by van Mill and Valov that regions in strongly locally homogeneous locally compact metric spaces of dimension are not separated by arcs. We improve this result…

math.GN2022

Discrete homogeneity and ends of manifolds

Vitalij A. Chatyrko, Alexandre Karassev

It is shown that a connected non-compact metrizable manifold of dimension is strongly discrete homogeneous if and only if it has one end (in the sense of Freudenthal compac…

math.GN2012

Alexandroff Manifolds and Homogeneous Continua

Alexandre Karassev, Vladimir Todorov, Vesko Valov

We prove the following result announced in Todorov and Valov: Any homogeneous, metric -continuum is a -continuum provided and …