2 papers
math.CO2019
Using -row graphs to study -competition graphs
Soogang Eoh, Taehee Hong, Suh-Ryung Kim +1
For a positive integer , the -competition graph of a digraph is a graph which has the same vertex set as and an edge between distinct vertices and if and only…
math.CO2019
The phylogeny number in the aspect of triangles and diamonds of a graph
Soogang Eoh, Suh-Ryung Kim, Hojun Lee
Given an acyclic digraph , the competition graph of , denoted by , is the simple graph having vertex set and edge set $\{uv \mid (u, w), (v, w) \in A(D) \text{ f…