Hoang La

activity

20242026

collaborators

3 papers

math.CO2026

Centered colorings and weak coloring numbers in minor-closed graph classes

Jędrzej Hodor, Hoang La, Piotr Micek +1

Let $C$ be a proper minor-closed class of graphs. Given the minors excluded in $C$ , we determine the maximum $q$ -centered chromatic number and the maximum $q$ th…

math.CO2025

Cube Height, Cube Width and Related Extremal Problems for Posets

Paul Bastide, Jędrzej Hodor, Hoang La +1

Given a poset $P$ , a family $S = {S_{x} : x \in P}$ of sets indexed by the elements of $P$ is called an inclusion representation of $P$ if $x ⩽ y$ in $P$ if and only if…

math.CO2024

Centered colorings in minor-closed graph classes

Jędrzej Hodor, Hoang La, Piotr Micek +1

A vertex coloring $φ$ of a graph $G$ is $p$ -centered if for every connected subgraph $H$ of $G$ , either $φ$ uses more than $p$ colors on $H$ , or there is a color that appears exact…