References
E. P. Wigner:Group Theory (New York, N.Y., 1959), pp. 151–152 (original German edition, 1931)) but the classic paper is by A. Haar:Ann. Math.,34, 147 (1933). No mention of the earlierSO3 results known to Wigner appears in the monograph by L. Nachbin:The Haar Integral (Princeton, N.J., 1965), a work that otherwise proyides a lucid and comprehensive review of Haar measure properties. A modern method for computingSO3 and other Haar measures is given byG. Rosen:Formulations of Classical and Quantum Dynamical Theory (New York, N.Y., 1969), p. 110–115.
P. R. Halmos:Measure Theory (Princeton, N.J., 1950), p. 145).
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Rosen, G. Spatial rotations, electromagnetic gauge transformations and the fine-structure constant. Lett. Nuovo Cimento 37, 48–50 (1983). https://doi.org/10.1007/BF02818082
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DOI: https://doi.org/10.1007/BF02818082