Hehui Wu

activity

20062026

most citedDichromatic number and fractional chromatic number

24 citations · 69 across the 22 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

math.CO2020★ 2 cited

The Betti Number of the Independence Complex of Ternary Graphs

Hehui Wu, Wentao Zhang

Given a graph $G$ , the \textit{independence complex} $I (G)$ is the simplicial complex whose faces are the independent sets of $V (G)$ . Let $b ~_{i}$ denote the $i$ -th reduced Be…

math.CO2020★ 4 cited

The inducibility of oriented stars

Ping Hu, Jie Ma, Sergey Norin +1

We consider the problem of maximizing the number of induced copies of an oriented star $S_{k, ℓ}$ in digraphs of given size, where the center of the star has out-degree $k$ and i…

math.CO2020★ 2 cited

A Ramsey Type problem for highly connected subgraphs

Chunlok Lo, Hehui Wu, Qiqin Xie

Bollobás and Gyárfás conjectured that for any $k, n \in Z^{+}$ with $n > 4 (k - 1)$ , every 2-edge-coloring of the complete graph on $n$ vertices leads to a $k$ -connected monoch…