Alexander E. Zalesskii

Minimal characters of the finite classical groups

Let G(q) be a finite simple group of Lie type over a finite field of order q and d(G(q)) the minimal degree of faithful projective complex representations of G(q). For the case G(q) is a classical group we deter-mine the number of projective complex characters of G(q) of degree d(G(q)). In several cases we also determine the projective complex characters of the second and the third lowest degrees. As a corollary of these results we deduce the classification of quasi-simple irreducible complex linear groups of degree at most 2r r a prime divisor of the group order.

Some aspects of finite linear groups: A survey

Finite linear groups have been studied since the beginning of the century. The goal of this survey is to reflect recent results in this area, obtained mostly in the 90’s and using the classification of finite simple groups.