Abstract
We construct universal twists connecting the centrally extended double Yangian DYrm(sl(2))c with deformed double Yangians DYrm(sl(2))c, thereby establishing the quasi-Hopf structures of the latter.
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Arnaudon, D., Avan, J., Frappat, L. et al. On the Quasi-Hopf Structure of Deformed Double Yangians. Letters in Mathematical Physics 51, 193–204 (2000). https://doi.org/10.1023/A:1007680606524
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DOI: https://doi.org/10.1023/A:1007680606524