Isomorphisms between affine Hecke algebras
classification
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algebrasaffineheckefieldisomorphicisomorphismsonlyprove
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Let $k$ be a field and suppose $p, q\in k$. We prove that the two affine Hecke algebras $H_q$ and $H_p$ of type $A_n$ are isomorphic as $k$-algebras if and only if $p=q^{\pm 1}$.
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