Yetter-Drinfeld category for the quasi-Turaev group coalgebra

Let $π$ be a group. The aim of this paper is to construct the category of Yetter-Drinfeld modules over the quasi-Turaev group coalgebra $H=(\{H_\a\}_{\a\inπ},Δ,\varepsilon,S,Φ)$, and prove that this category is isomorphic to the center of the representation category of $H$. Therefore a new Turaev braided group category is constructed.

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