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Suppose that $G$ and $H$ are groups (not isomorphic) and $G\ast H$ the amalgamate productfree product. Let $Aut(G)$, $Aut(H)$ be the automorphism groups of $G$ and $H$. What is $Aut(G\ast H)$ ?
Automorphism group of an amalgamate product
Suppose that $G$ and $H$ are groups (not isomorphic) and $G\ast H$ the amalgamate product. Let $Aut(G)$, $Aut(H)$ be the automorphism groups of $G$ and $H$. What is $Aut(G\ast H)$ ?
Automorphism group of a free product
Suppose that $G$ and $H$ are groups (not isomorphic) and $G\ast H$ the free product. Let $Aut(G)$, $Aut(H)$ be the automorphism groups of $G$ and $H$. What is $Aut(G\ast H)$ ?
Suppose that $G$ and $H$ are groups (not isomorphic) and $G\ast H$ the amalgamate product. Let $Aut(G)$, $Aut(H)$ be the automorphism groups of $G$ and $H$. What is $Aut(G\ast H)$ ?
