Tag Archives: cograph

Graphs on groups, 5

Posted on 26/03/2021 by Peter Cameron

I gave two lectures on this stuff to a new research seminar on Groups and Graphs, run by Vijayakumar Ambat in Kochi, Kerala. The first was an introduction to the hierarchy, the second was about cographs and twin reduction, why … Continue reading →

Posted in events, exposition, open problems | Tagged , , , , | 2 Comments

Graphs defined on groups

Posted on 23/01/2021 by Peter Cameron

I’ve been spending time I can ill afford on various questions related to graphs whose vertex set is a group G and which capture some of the structure of G. (I interpret this to mean that the graph is invariant … Continue reading →

Posted in mathematics | Tagged , , , | 8 Comments