On standard Auslander-Reiten sequences for finite groups
On standard Auslander-Reiten sequences for finite groups
复制标题
关于有限群的标准 Auslander-Reiten 序列
DOI:
10.1007/s000130050478
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发表时间:
2000
影响因子:
0.6
通讯作者:
Shigeto Kawata
中科院分区:
文献类型:
--
作者:
Shigeto Kawata
LetGbe a finite group anda complete discrete valuation ring of characteristic zero with maximal idealand residue fieldof characteristicp> 0. LetSbe a simplekG-module andQSa projective-lattice such thatis a projective cover ofS. We show that ifSis liftable andQSbelongs to a block ofof infinite representation type, then the standard Auslander-Reiten sequence terminating inis a direct summand of the short exact sequence obtained from some Auslander-Reiten sequence of-lattices by reducing each term mod.