K. Zhang

collaborators

2 papers

math.GR2016

The countable type properties in free paratopological groups

Fucai Lin, Chuan Liu, kexiu Zhang

A space $X$ is of countable type (resp. subcountable type) if every compact subspace $F$ of $X$ is contained in a compact subspace $K$ that is of countable character (resp. countab…

math.GN2015

Locally $σ$ -compact rectifiable spaces

Fucai Lin, Jing Zhang, Kexiu Zhang

A topological space $G$ is said to be a {\it rectifiable space} provided that there are a surjective homeomorphism $φ : G \times G \to G \times G$ and an element $e \in G$ such t…

The countable type properties in free paratopological groups

Locally σ-compact rectifiable spaces

Locally $σ$ -compact rectifiable spaces