Finite dimensional unitary representations of quantum Anti – de Sitter groups at roots of unity

@inproceedings{Steinacker1996FiniteDU,
  title={Finite dimensional unitary representations of quantum Anti – de Sitter groups at roots of unity},
  author={Harold C. Steinacker},
  year={1996}
}
We study unitary irreducible representations of Uq(SO(2, 1)) and Uq(SO(2, 3)) for q a root of unity, which are finite – dimensional. Among others, unitary representations corresponding to all classical one – particle representations with integral weights are found for q = eiπ/m and m large enough. In the ”massless” case with spin ≥ 1 in 4 dimensions, they are unitarizable only after factoring out a subspace of ”pure gauges”, as classically. A truncated associative tensor product describing… CONTINUE READING

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