On the Quasi-Hopf structure of deformed double Yangians

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97851We 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.11 pagesQuantum Algebra81R80; 17B37On the Quasi-Hopf structure of deformed double Yangianstext