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On pointed Hopf algebras associated to unmixed conjugacy classes in S_n

Nicol'as Andruskiewitsch·Fernando Fantino
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Abstract

Let s in S_n be a product of disjoint cycles of the same length, C the conjugacy class of s and rho an irreducible representation of the isotropy group of s. We prove that either the Nichols algebra B(C, rho) is infinite-dimensional, or the braiding of the Yetter-Drinfeld module is negative.

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BibTeXRIS

Nicol'as Andruskiewitsch, Fernando Fantino. 2006-08-28. On pointed Hopf algebras associated to unmixed conjugacy classes in S_n. https://doi.org/10.1063/1.2436730

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