On the nX-complementary generations of a Chevalley group

A finite non-abelian group G is said to be nX-complementary generated if, for any arbitrary non-identity element x G, there exists an element y nX such that G = x, y, where nX is a non-trivial conjugacy class of elements of order n.In this paper, we classify all the non-trivial conjugacy classes of the Chevalley group G2(4), determining whether they are complementary generators of G2(4) or not.We prove that the group G2( 4) is nX-complementary generated if and only if n 5 and nX / {5A, 5B}.