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Universal deformation rings and tame blocks

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 نشر من قبل Frauke Bleher
 تاريخ النشر 2013
  مجال البحث
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Let k be an algebraically closed field of positive characteristic, and let W be the ring of infinite Witt vectors over k. Suppose G is a finite group and B is a block of kG of infinite tame representation type. We find all finitely generated kG-modules V that belong to B and whose endomorphism ring is isomorphic to k and determine the universal deformation ring R(G,V) for each of these modules.



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