Weichan Liu

activity

20172026

most citedOdd coloring of 2-boundary planar graphs and beyond

2 citations · 3 across the 14 of their papers we have counts for

collaborators

Showing 2022 · math.COShow all

2 papers · 2 filters

math.CO2022★ 2 cited

Odd coloring of 2-boundary planar graphs and beyond

Weichan Liu, Mengke Qi, Xin Zhang

In this paper, we introduce the notion of 2-boundary planar graphs. A graph is 2-boundary planar if it has an embedding in the plane so that all vertices lie on the boundary of at…

math.CO2022

Hypergraph incidence coloring

Weichan Liu, Guiying Yan

An incidence of a hypergraph $H = (X, S)$ is a pair $(x, s)$ with $x \in X$ , $s \in S$ and $x \in s$ . Two incidences $(x, s)$ and $(x^{'}, s^{'})$ are adjacent if (i) $x = x^{'}$ , or (ii) $\…