Kohzo Yamada

most citedEvery Separable Metrizable Space has a Proper Dyadic Subbase

2 citations · 2 across the 2 of their papers we have counts for

collaborators

2 papers

math.GN2018

Characterization of a metrizable space $X$ such that $F_{4} (X)$ is Fréchet-Urysohn

Kohzo Yamada

Let $F (X)$ be the free topological group on a Tychonoff space $X$ . For all natural numbers $n$ we denote by $F_{n} (X)$ the subset of $F (X)$ consisting of all words of reduced length…

math.GN2013★ 2 cited

Every Separable Metrizable Space has a Proper Dyadic Subbase

Haruto Ohta, Hideki Tsuiki, Kohzo Yamada

The notions of a proper dyadic subbase and an independent subbase was introduced by H. Tsuiki to investigate in {0, 1, bot}-sequence codings of topological spaces. We show that eve…

Characterization of a metrizable space X such that F4​(X) is Fréchet-Urysohn

Every Separable Metrizable Space has a Proper Dyadic Subbase

Characterization of a metrizable space $X$ such that $F_{4} (X)$ is Fréchet-Urysohn