Finite groups with coprime non-linear codegrees

Ashkan Zarezadeh, Behrooz Khosravi, Zeinab Akhlaghi

Given a finite group G with an irreducible character χ\in Irr(G), the codegree of χis defined by cod(χ) = |G :\ker χ|/χ(1). The set of non-linear irreducible character codegrees of…