It is this paper which introduced many important ideas but the most significant result was a reduction theorem for the restricted Burnside problem which essentially reduced the problem to looking only at groups of prime power exponent.
Just see paber, millega kehtestati mitmeid olulisi ideid, kuid kõige olulisem tulemus oli vähendamine teoreemi jaoks piiratud Burn Side probleem, mis sisuliselt vähendada probleemi, et otsin ainult rühmad primaarenergia eksponent.