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On the Quasi-Hopf structure of deformed double Yangians

D. Arnaudon·J. Avan·L. Frappat·E. Ragoucy·M. Rossi
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Abstract

We construct universal twists connecting the centrally extended double Yangian DY(sl(2))_c with deformed double Yangians DY_r(sl(2))_c, thereby establishing the quasi-Hopf structures of the latter.

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D. Arnaudon, J. Avan, L. Frappat, E. Ragoucy, M. Rossi. 2000-01-06. On the Quasi-Hopf structure of deformed double Yangians. https://arxiv.org/abs/math/0001034

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