subgroup

Let G be an infinite group. If G has a normal elementary abelian subgroup, then G is irrecognizable.

Fig.2 Camera lucida drawings of subgroup cell of retinotectal projectingRGCs in the chick.

Avian leukosis virus subgroup J (ALV-J) is a retrovirus which infects meat-type chickens.

The occurrence of Avian Leukosis Virus-J Subgroup on the Commercial layer of Roman reported was the first time at home and abroad.

Considering the subnormal subgroups,some equivalent conditions for nilpotency of finite groups are given and a sufficient condition for nilpotency of finite groups is obtained.

A prairie dog of the endangered subgroup Cynomys parvidens pokes through a heavy Utah snow.