Singular R-matrices and Drinfeld's comultiplication

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dc.creatorKedem, Rinat
dc.date1996-11-03
dc.date1996-11-04
dc.date.accessioned2026-07-07T09:08:42Z
dc.date.available2026-07-07T09:08:42Z
dc.descriptionWe compute the R-matrix which intertwines two dimensional evaluation representations with Drinfeld comultiplication for U_q(\widehat{sl}_2). This R-matrix contains terms proportional to the delta-function. We construct the algebra A(R) generated by the elements of the matrices L^\pm(z) with relations determined by R. In the category of highest weight representations, there is a Hopf algebra isomorphism between A(R) and an extension \overline{U}_q(\widehat{sl}_2)} of Drinfeld's algebra.
dc.description9 pages, AMS latex
dc.identifierhttps://arxiv.org/abs/q-alg/9611001
dc.identifierhttp://arxiv.org/abs/q-alg/9611001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/150818
dc.subjectQuantum Algebra
dc.titleSingular R-matrices and Drinfeld's comultiplication
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