We consider the automorphisms of formal matrix algebras over a given commutative ring. In some cases the automorphism group of these algebras is a semidirect product of certain subgroups whose… Click to show full abstract
We consider the automorphisms of formal matrix algebras over a given commutative ring. In some cases the automorphism group of these algebras is a semidirect product of certain subgroups whose structure is known.
               
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