Orlando Lee

activity

20132022

most citedOn Gallai's and Hajós' Conjectures for graphs with treewidth at most 3

5 citations · 21 across the 14 of their papers we have counts for

collaborators

Showing 2022Show all

2 papers · 1 filter

math.CO2022★ 2 cited

A family of counterexamples for a conjecture of Berge on $α$ -diperfect digraphs

Caroline Aparecida de Paula Silva, Cândida Nunes da Silva, Orlando Lee

Let $D$ be a digraph. A stable set $S$ of $D$ and a path partition $P$ of $D$ are orthogonal if every path $P \in P$ contains exactly one vertex of $S$ . In 1982…

math.CO2022★ 2 cited

$3$ -anti-circulant digraphs are $α$ -diperfect and BE-diperfect

Lucas Ismaily Bezerra Freitas, Orlando Lee

Let $D$ be a digraph. A subset $S$ of $V (D)$ is a stable set if every pair of vertices in $S$ is non-adjacent in $D$ . A collection of disjoint paths $P$ of $D$ is a path…

A family of counterexamples for a conjecture of Berge on α-diperfect digraphs

3-anti-circulant digraphs are α-diperfect and BE-diperfect

A family of counterexamples for a conjecture of Berge on $α$ -diperfect digraphs

$3$ -anti-circulant digraphs are $α$ -diperfect and BE-diperfect