The Green rings of the 2-rank Taft algebra and its two relatives twisted

Published 7 May 2013 in math.RT | (1305.1444v6)

Abstract: In the paper, the representation rings (or the Green rings) for a family of Hopf algebras of tame type, the 2-rank Taft algebra (at $q=-1$) and its two relatives twisted by 2-cocycles are explicitly described via a representation theoretic analysis. It turns out that the Green rings can serve to detect effectively the twist-equivalent Hopf algebras here.

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