Erca, G.; Güloğlu, İ.Ş.
(ДЗ "ЛНУ імені Тараса Шевченка", 2017)
Let D = hα, βi be a dihedral group generated by
the involutions α and β and let F = hαβi. Suppose that D acts on a
finite group G by automorphisms in such a way that CG(F) = 1. In
the present paper we prove that the ...