Ro-Yu Wu

collaborators

3 papers

math.CO2023

Graphs with girth 9 and without longer odd holes are 3-colorable

Yan Wang, Rong Wu

For a number $l \geq 2$ , let $G_{l}$ denote the family of graphs which have girth $2 l + 1$ and have no odd hole with length greater than $2 l + 1$ . Wu, Xu and Xu conjectured that e…

math.CO2023

Borodin-Kostochka conjecture for a family of $P_{6}$ -free graphs

Di Wu, Rong Wu

Borodin and Kostochka conjectured that every graph $G$ with $Δ \geq 9$ satisfies $χ \leq$ max ${ω, Δ - 1}$ . Gupta and Pradhan proved the Borodin-Kostochka conjecture for ( $P_{5}$ , $C_{4}$ )-…

math.NT2022

Mobius disjointness conjecture on the product of a circle and the Heisenberg nilmanifold

Jing Ma, Ronghui Wu

Let $T$ be the unit circle and $Γ ∖ G$ the 3-dimensional Heisenberg nilmanifold. We prove that the Möbius function is linearly disjoint from a class of distal skew…

Graphs with girth 9 and without longer odd holes are 3-colorable

Borodin-Kostochka conjecture for a family of P6​-free graphs

Mobius disjointness conjecture on the product of a circle and the Heisenberg nilmanifold

Borodin-Kostochka conjecture for a family of $P_{6}$ -free graphs