Перегляд за автором "Vorob’ev, N.N."

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  • Hall operators on the set of formations of finite groups 
    Mekhovich, A.P.; Vorob’ev, N.N.; Vorob’ev, N.T. (Algebra and Discrete Mathematics, 2010)
    Let π be a nonempty set of primes and let F be a saturated formation of all finite soluble π-groups. It is constructed the saturated formation consisting of all finite π-soluble groups whose F-projectors contain a Hall ...
  • On Stone sublattices of the lattice of totally local Fitting classes 
    Skiba, A.N.; Vorob’ev, N.N. (Algebra and Discrete Mathematics, 2007)
    Totally local Fitting classes with a Stone lattice of totally local Fitting subclasses are described.