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Results tagged with group-rings
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user 9205
A group ring $R[G]$ is a ring constructed in a natural way from a ring $R$ and a group $G$.
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Do the homological dimension and cohomological dimension for a group agree?
Or equivalently, if $G$ is a group, do the projective and injective dimension of $Z$ (viewed as a $ZG$-module) agree?
Thanks!
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