Finite Dimensional Quasi-hopf Algebras with Radical of Codimension 2

@inproceedings{GELAKI2003FiniteDQ,
  title={Finite Dimensional Quasi-hopf Algebras with Radical of Codimension 2},
  author={SHLOMO GELAKI},
  year={2003}
}
  • SHLOMO GELAKI
  • Published 2003
It is shown in [EO], Proposition 2.17, that a finite dimensional quasi-Hopf algebra with radical of codimension 1 is semisimple and 1-dimensional. On the other hand, there exist quasi-Hopf (in fact, Hopf) algebras, whose radical has codimension 2. Namely, it is known [N] that these are exactly the Nichols Hopf algebras H2n of dimension 2, n ≥ 1 (one for each value of n). The main result of this paper is that if H is a finite dimensional quasi-Hopf algebra over C with radical of codimension 2… CONTINUE READING

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