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 2015 · math.GNShow all

2 papers · 2 filters

math.GN2015

On topological groups admitting a base at identity indexed with $ω^{ω}$

Arkady G. Leiderman, Vladimir G. Pestov, Artur H. Tomita

A topological group $G$ is said to have a local $ω^{ω}$ -base if the neighbourhood system at identity admits a monotone cofinal map from the directed set $ω^{ω}$ . In particular, every m…

math.GN2015

Density character of subgroups of topological groups

Arkady Leiderman, Sidney A. Morris, Mikhail G. Tkachenko

A subspace Y of a separable metrizable space X is separable, but without X metrizable this is not true even If Y is a closed linear subspace of a topological vector space X. K.H. H…

On topological groups admitting a base at identity indexed with ωω

Density character of subgroups of topological groups

On topological groups admitting a base at identity indexed with $ω^{ω}$