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Explicit Formulas for 2-Characters

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 Added by Angelica Osorno
 Publication date 2009
  fields
and research's language is English




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Ganter and Kapranov associated a 2-character to 2-representations of a finite group. Elgueta classified 2-representations in the category of 2-vector spaces 2Vect_k in terms of cohomological data. We give an explicit formula for the 2-character in terms of this cohomological data and derive some consequences.



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