Automorphisms of direct products of finite groups II
نویسنده
چکیده
In this paper we first find the automorphism group of the direct product of n copies of an indecomposable non-abelian group. We describe the automorphism group as matrices with entries which are homomorphisms between the n direct factors. We then use this description with a generalization of a result by Bidwell, Curran, and McCaughan on Aut (H×K), where H and K have no common direct factor, to provide structure and order theorems for an arbitrary direct product. Mathematics Subject Classification (2000). Primary 20D45; Secondary 20H99.
منابع مشابه
A Note on Absolute Central Automorphisms of Finite $p$-Groups
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