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A remark on the freeness condition of Suzukis correspondence theorem for intermediate ${rm C}^ast$-algebras

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 نشر من قبل Ryo Ochi
 تاريخ النشر 2019
  مجال البحث
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 تأليف Ryo Ochi




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Let $Gamma$ be a discrete group satisfying the approximation property (AP). Let $X$, $Y$ be $Gamma$-spaces and $pi colon Y to X$ be a proper factor map which is injective on the non-free part. We prove the one-to-one correspondence between intermediate ${rm C}^ast$-algebras of $C_0(X) rtimes_r Gamma subset C_0(Y) rtimes Gamma$ and intermediate $Gamma$-${rm C}^ast$-algebras of $C_0(X) subset C_0(Y)$. This is a generalization of Suzukis theorem that proves the statement for free actions.



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