Let σ={σi | i ∈ I} be some partition of the set of all primes P. A set H of subgroups of G is said to be a complete H......

设(R)σ是指所有σ-幂零群所有构成的群类,并记G(R)σ 是G的σ-幂零群上根.我们称群G是σ-超可解的,如果G的含于G(R)σ的主因子是......