Yuefang Sun

collaborators

3 papers

math.CO2026

Arc-disjoint Steiner Cycles in Digraphs

Jie Bai, Yuefang Sun, Chuchu Wang +1

Let $D = (V (D), A (D))$ be a digraph of order $n$ and let $S \subseteq V (D)$ with $2 \leq ∣ S ∣ \leq n$ . A directed cycle $C$ of $D$ is called a directed $S$ -Steiner cycle (or, an $S$ -cycl…

math.CO2026

On the supersaturation of oriented TurÃ¡n problems

Xuanrui Hu, Yuefang Sun

The oriented TurÃ¡n number of a given oriented graph $F$ , denoted by $\exo(n,\overrightarrow{F})$, is the largest number of arcs in $n$ -vertex $F$ …

math.CO2026

On oriented TurÃ¡n problems

DÃ¡niel Gerbner, Xuanrui Hu, Yuefang Sun

The oriented TurÃ¡n number of a given oriented graph $F$ , denoted by $\exo(n,\overrightarrow{F})$, is the largest number of arcs in $n$ -vertex $F$ …