Wanting Sun

collaborators

2 papers

math.CO2025

Packing tetrahedrons in edge-weighted graphs

Wanting Sun, Shunan Wei, Donglei Yang

We prove that for all $I^¼ > 0, t \in (0, 1)$ and sufficiently large $n \in 4 N$ , if $G$ is an edge-weighted complete graph on $n$ vertices with a weight function $w: E(G)\righta…

math.CO2025

Cospectral graphs obtained by edge deletion

Chris Godsil, Wanting Sun, Xiaohong Zhang

Let $M \circ N$ denote the Schur product of two matrices $M$ and $N$ . A graph $X$ with adjacency matrix $A$ is walk regular if $A^{k} \circ I$ is a constant times $I$ for each $k \geq 0$ ,…