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Review and concrete description of the irreducible unitary representations of the universal cover of the complexified Poincaré group
In this paper, we give a pedagogical presentation of the irreducible unitary representations of [Formula: see text], that is, of the universal cover of the complexified Poincaré group [Formula: see text]. These representations were first investigated by Roffman in 1967. We provide a modern formulation of his results together with …