Shuyan Chen

collaborators

2 papers

math.CO2026

Cyclic Sources of Strong Domination in Graph Norms

Shuyan Chen

Conlon and Lee asked for strongly dominating graphs beyond norming graphs and even paths. We construct a two-parameter family of pairwise non-isomorphic $2$ -connected strongly domi…

math.CO2026

Odd-Cycle Span Defect: A Polynomial Lower Bound and a Square-Root Upper Bound

Shuyan Chen

For a graph $G$ , let $ψ (G) = max {χ (G [V (C)]) : C$ is an odd cycle of $G}$ , with $ψ (G) = 0$ when $G$ is bipartite. For positive integers $N$ , set $F (N) = max {χ (G) - ψ (G) : ∣ V (G) ∣ \leq N}$ . T…