پديدآورندگان :
Dolfi S dolfi@math.unifi.it Dipartimento di Matematica e Informatica U. Dini,
Università degli Studi di Firenze, viale Morgagni 67/a, 50134 Firenze, Italy. , Khedri K k.khedri@math.iut.ac.ir Department of Mathematical Sciences,
Isfahan University of Technology, 84156-83111 Isfahan, Iran. , Pacifici E emanuele.pacifici@unimi.it Dipartimento di Matematica F. Enriques,
Università degli Studi di Milano, via Saldini 50, 20133 Milano, Italy.
چكيده فارسي :
Let G be a finite group, and let cd(G) denote the set of degrees of the irreducible complex characters of G. This paper is a contribution to the study of the degree graph of G, that is, the prime graph built on the set cd(G). Namely, we characterize finite groups whose degree graph has three independent vertices (i.e., three vertices that are pairwise non-adjacent). Our result turns out to be a generalization of several previously-known theorems concerning the structure of the degree graph
