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|Paper IPM / M / 61||
Let q be a power of the prime number p and n be a natural number. If A ∈ GLn(q), then θ(A)=(At)−1 is an outer automorphism of GLn(q) if (n,q) ≠ (2,2); where At denotes the transpose of the matrix A. In this case we set G+=GLn(q). < θ > and our aim in this paper is to find the conjugacy classes of elements of order 2 and 4 in G+−GLn(q).
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