Ruichao Niu

collaborators

3 papers

math.CO2026

Two-disjoint-cycle-cover edge bipancyclicity in Cartesian products

Ke Lu, Ruichao Niu, Min Xu

For two even integers $r_{1} \leq r_{2}$ , a graph $G$ of even order is \emph{2-DCC edge $[r_{1}, r_{2}]$ -bipancyclic} if for every ordered pair $(e, f)$ of independent edges and every even in…

math.CO2026

Two-disjoint-cycle-cover vertex pancyclicity of split-star networks

Chang Liu, Ruichao Niu, Yuefeng Yang

Let $r_{1}$ and $r_{2}$ be positive integers with $r_{1} \leq r_{2}$ . A graph $G$ is called $2$ -DCC vertex $[r_{1}, r_{2}]$ -pancyclic if, for any two distinct vertices of $G$ and any integer $\e…

math.CO2025

Neighbor Connectivity of Undirected Toroidal Meshes

Hui-Ming Huang, Ruichao Niu, Min Xu +1

In this paper, we examine the neighbor connectivity, denoted as $κ_{N B}$ , of the undirected toroidal mesh $C (d_{1}, d_{2}, \dots, d_{n})$ . We demonstrate that $κ_{NB}(C(d_1,d_2,\ldots,d_n)…