Degree graphs of simple groups. (Q734590)

Let \(G\) be a finite group, and let \(\text{cd}(G)\) be the set of irreducible character degrees of \(G\). The degree graph \(\Delta(G)\) is the graph whose set of vertices is the set of primes that divide degrees in \(\text{cd}(G)\), with an edge between \(p\) and \(q\) if \(pq\) divides \(a\) for some degree \(a\in\text{cd}(G)\). In this paper, the author gives a survey in which the degree graphs for all nonabelian finite simple groups are described.