Indecomposable U_q(sl_n) modules for q^h = -1 and BRS intertwiners

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dc.creatorFurlan, Paolo
dc.creatorHadjiivanov, Ludmil
dc.creatorTodorov, Ivan
dc.date2000-12-22
dc.date.accessioned2026-07-07T10:53:30Z
dc.date.available2026-07-07T10:53:30Z
dc.descriptionA class of indecomposable representations of U_q(sl_n) is considered for q an even root of unity (q^h = -1) exhibiting a similar structure as (height h) indecomposable lowest weight Kac-Moody modules associated with a chiral conformal field theory. In particular, U_q(sl_n) counterparts of the Bernard-Felder BRS operators are constructed for n=2,3. For n=2 a pair of dual d_2(h) = h dimensional U_q(sl_2) modules gives rise to a 2h-dimensional indecomposable representation including those studied earlier in the context of tensor product expansions of irreducible representations. For n=3 the interplay between the Poincare'-Birkhoff-Witt and (Lusztig) canonical bases is exploited in the study of d_3(h) = h(h+1)(2h+1)/6 dimensional indecomposable modules and of the corresponding intertwiners.
dc.description31 pages, LaTeX, amsfonts, amssymb
dc.identifierhttps://arxiv.org/abs/hep-th/0012224
dc.identifierhttp://arxiv.org/abs/hep-th/0012224
dc.identifierJ.Phys.A34:4857-4880,2001
dc.identifierdoi:10.1088/0305-4470/34/23/306
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185504
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.subjectQuantum Algebra
dc.titleIndecomposable U_q(sl_n) modules for q^h = -1 and BRS intertwiners
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