A. Leiderman

activity

19922026

most citedThe strong Pytkeev property in topological spaces

17 citations · 39 across the 19 of their papers we have counts for

collaborators

Showing 2026Show all

4 papers · 1 filter

math.GN2026

Metrizable and Fréchet--Urysohn subgroups and linear subspaces of topological vector spaces

Arkady Leiderman, Evgenii Reznichenko, Ol'ga Sipacheva

For a normed space $E$ , we denote by $E_{w}$ and $E_{w^{*}}^{'}$ the space $E$ and its dual $E^{'}$ endowed with the weak topology $w$ and the weak $^{*}$ topology $w^{*}$ , respectively. It is we…

math.GN2026

$ϰ$ -Fréchet--Urysohn and Baire subgroups of free topological groups

Arkady Leiderman, Evgenii Reznichenko, Ol'ga Sipacheva

A topological space is $ϰ$ -Fréchet--Urysohn if every point in the closure of an open set $U$ is the limit of a sequence of points of $U$ . We prove that every $ϰ$ -Fr…

math.FA2026

On densely defined linear continuous operators between function spaces

Arkady Leiderman, Vesko Valov

For any Tychonoff space $X$ , let $D (X)$ denote either the space $C (X)$ of all continuous real-valued functions on $X$ or the space $C^{*} (X)$ of all bounded continuous real-valued fu…

math.FA2026

A survey on the Asplund property for spaces $C (X)$ of continuous functions

Marian Fabian, Jerzy Kakol, Arkady Leiderman

The Asplund property plays an important role in Banach space theory due to its connections with differentiability properties of continuous convex functions, optimization problems,…

Metrizable and Fréchet--Urysohn subgroups and linear subspaces of topological vector spaces

ϰ-Fréchet--Urysohn and Baire subgroups of free topological groups

On densely defined linear continuous operators between function spaces

A survey on the Asplund property for spaces C(X) of continuous functions

$ϰ$ -Fréchet--Urysohn and Baire subgroups of free topological groups

A survey on the Asplund property for spaces $C (X)$ of continuous functions