Wenzhong Liu

collaborators

2 papers

math.CO2026

The point-thicknesses of complete multipartite graphs

Wenzhong Liu, Wangkai Zhang

The point-thickness $θ^{'} (G)$ of a graph $G$ is the minimum number of subsets into which the vertex set $V (G)$ of $G$ is partitioned such that each subset induces a planar subgraph.…

math.CO2021

Minimal quadrangulations of surfaces

Wenzhong Liu, M. N. Ellingham, Dong Ye

A quadrangular embedding of a graph in a surface $Σ$ , also known as a quadrangulation of $Σ$ , is a cellular embedding in which every face is bounded by a $4$ -cycle. A quadrangulati…