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Half-balanced braided monoidal categories and Teichmueller groupoids in genus zero
Half-balanced braided monoidal categories Teichmueller groupoids in genus zero
2010/12/6
We introduce the notions of a half-balanced braided monoidal category and of its contraction. These notions give rise to an explicit description of the action of the Galois group of Q on Teichm¨uller ...