On some classical space-time groups and their “SU6 generalizations”

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1. [1] The conformal group was first introduced by H. BATEMAN, Proc. Lond. Math. Soc., 8, 1910, 223 and E. Cunningham, Proc. Lond. Math. Soc., 8, 1910, 77 
2. Invariance of the Maxwell equations leads to the conformal group so far as space time is assumed to be flat. For a more general case, see T. Fulton, F. Rohrlich and L. Witten, Rev. Mod. Phys., 34, 1962, 442. Zbl0107.40804MR145966
3. See also J. Wess, Nuovo Cimento, 18, 1960, 1086. Zbl0094.42601
4. [2] B. Sakita, Phys. Rev., 136, 1964, B1756. MR180224
5. F. Gürsey and L.A. Radicati, Phys. Rev. Letters, 13, 1964, 173. MR167226
6. H. Bacry and J. Nuyts, Phys. Letters, 12, 156 and 13, 1964, 359. MR184628
7. [4] Dyads are very convenient in the investigation of the Lorentz group. See, for instance, H. Bacry, Thèse, Annales de Physique, 8, 1963, 197. 
8. J.M. Souriau, Calcul linéaire (Paris, Presses Universitaires, 1960). Zbl0086.01501MR110718
9. [6] D. Spelser, Lectures given at the Istanbul Summer School (1962), to be published. 
10. [10] [ M. Gell-Mann, Phys. Letters, 8, 1964, 214 and G. Zweig, Cern preprints TH. 401 and 412,1964]. MR140308
11. [11] R.P. Feynman, M. Gell-Mann and G. Zweig in Phys. Rev. Letters (to be published), « The group U(6) x U(6) generated by current components. » Zbl0126.24603
12. [12] M. Gell-Mann, Phys. Rev., 125, 1962, 1067. Zbl0107.44301MR138414
13. [14] H. Bacry and J. Nuyts, « Remarks on an enlarged Poincaré group: inhomogeneous SL(6,C) group » (to be published in Nuovo Cimento). Zbl0127.20807
14. [19] See ref. [14] [16]. See also T. Fulton and J. Wess, Phys. Letters, 14, 1965, 57. Zbl0151.44702
15. R. Delburgo, A. Salam and J. Strathdee, « U(12) and broken SU(6) symmetry », « Ü(12) and the baryon form factor », preprints Trieste (January 1965). MR194053