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Filling families and strong pure infiniteness

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 نشر من قبل Adam Sierakowski
 تاريخ النشر 2015
  مجال البحث
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We introduce filling families with matrix diagonalization as a refinement of the work by R{o}rdam and the first named author. As an application we improve a result on local pure infiniteness and show that the minimal tensor product of a strongly purely infinite $C^*$-algebra and a exact $C^*$-algebra is again strongly purely infinite. Our results also yield a sufficient criterion for the strong pure infiniteness of crossed products $Artimes_varphi mathbb{N}$ by an endomorphism $varphi$ of $A$ (cf. Theorem 7.6). Our work confirms that the special class of nuclear Cuntz-Pimsner algebras constructed by Harnisch and the first named author consist of strongly purely infinite $C^*$-algebras, and thus absorb $mathcal{O}_infty$ tensorially.



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