Mathematics – Representation Theory
Scientific paper
2006-05-26
Mathematics
Representation Theory
Scientific paper
Thin coverings are a method of constructing graded-simple modules from simple (ungraded) modules. After a general discussion, we classify the thin coverings of (quasifinite) simple modules over associative algebras graded by finite abelian groups. The classification uses the representation theory of cyclotomic quantum tori. We close with an application to representations of multiloop Lie algebras.
Billig Yuly
Lau Michael
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