Summary
Little group structures are discussed when Poincaré transformations are extended by dilatations. Only lightlike four-momenta do enter into this study.
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Boursier I.R.S.I.A. (1982-1983).
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Hussin, V. On Wigner’s little groups and scale transformations. Lett. Nuovo Cimento 35, 305–308 (1982). https://doi.org/10.1007/BF02754694
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DOI: https://doi.org/10.1007/BF02754694