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On the Mod-2 Cohomology of SL 3 (z[ 1 2 , i])

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 نشر من قبل Hans-Werner Henn
 تاريخ النشر 2017
  مجال البحث
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 تأليف Hans-Werner Henn




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Let $Gamma$ = SL 3 (Z[ 1 2 , i]), let X be any mod-2 acyclic $Gamma$-CW complex on which $Gamma$ acts with finite stabilizers and let Xs be the 2-singular locus of X. We calculate the mod-2 cohomology of the Borel constructon of Xs with respect to the action of $Gamma$. This cohomology coincides with the mod-2 cohomology of $Gamma$ in cohomological degrees bigger than 8 and the result is compatible with a conjecture of Quillen which predicts the strucure of the cohomology ring H * ($Gamma$; Z/2).

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