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Dynamical correspondences of $L^2$-Betti numbers

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 نشر من قبل Bingbing Liang
 تاريخ النشر 2017
  مجال البحث
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 تأليف Bingbing Liang




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We investigate dynamical analogues of the $L^2$-Betti numbers for modules over integral group ring of a discrete sofic group. In particular, we show that the $L^2$-Betti numbers exactly measure the failure of addition formula for dynamical invariants.

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