* (63) P. A. M. Dirac, “Unitary Representations of the Lorentz Group,” Proc. Roy. Soc. Lond. A 183 (1945) 284–295.
  * (64) V. Bargmann, “Irreducible unitary representations of the Lorentz group,” Annals Math. 48 (1947) 568–640.
  * (65) Harish-Chandra, “Infinite irreducible representations of the lorentz group,” Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences 189 no. 1018, (1947) 372–401. http://www.jstor.org/stable/97833.
  * (66) I. M. Gelfand and M. A. Naimark, “Unitary representations of the Lorentz group,” Izv. Akad. Nauk SSSR Ser. Mat. 11 (1947) 411–504.
  * (67) Z. Sun, “A note on the representations of $\text{SO}(1,d+1)$,” arXiv:2111.04591 [hep-th].
  * (68) A. Kitaev, “Notes on $\widetilde{\mathrm{SL}}(2,\mathbb{R})$ representations,” arXiv:1711.08169 [hep-th].
  * (69) D. Anninos, T. Anous, B. Pethybridge, and G. Şengör, “The Discreet Charm of the Discrete Series in DS2,” arXiv:2307.15832 [hep-th].
  * (70) J. Bros, H. Epstein, and U. Moschella, “Scalar tachyons in the de Sitter universe,” Lett. Math. Phys. 93 (2010) 203–211, arXiv:1003.1396 [hep-th].
  * (71) H. Epstein and U. Moschella, “de Sitter tachyons and related topics,” Commun. Math. Phys. 336 no. 1, (2015) 381–430, arXiv:1403.3319 [hep-th].
  * (72) B. Pethybridge and V. Schaub, “Tensors and spinors in de Sitter space,” JHEP 06 (2022) 123, arXiv:2111.14899 [hep-th].
  * (73) D. Z. Freedman and A. Van Proeyen, Supergravity.  Cambridge Univ. Press, Cambridge, UK, 5, 2012.
  * (74) D. Anninos, T. Anous, and A. Rios Fukelman, “de Sitter at all loops: the story of the Schwinger model,” arXiv:2403.16166 [hep-th].
  * (75) C. Jayewardena, “SCHWINGER MODEL ON S(2),” Helv. Phys. Acta 61 (1988) 636–711.
  * (76) G. M. Shore, “Conformal Anomaly for Massless Quantum Electrodynamics in Spherical Space-time,” Phys. Rev. D 21 (1980) 2226.
  * (77) J. H. Lowenstein and J. A. Swieca, “Quantum electrodynamics in two-dimensions,” Annals Phys. 68 (1971) 172–195.
  * (78) S. Iso and H. Murayama, “ALL ABOUT THE MASSLESS SCHWINGER MODEL,”.
  * (79) P. Kravchuk, D. Mazac, and S. Pal, “Automorphic Spectra and the Conformal Bootstrap,” arXiv:2111.12716 [hep-th].
  * (80) E. Gesteau, S. Pal, D. Simmons-Duffin, and Y. Xu, “Bounds on spectral gaps of Hyperbolic spin surfaces,” arXiv:2311.13330 [math.SP].
  * (81) M. S. Costa, V. Gonçalves, and J. a. Penedones, “Spinning AdS Propagators,” JHEP 09 (2014) 064, arXiv:1404.5625 [hep-th].
  * (82) R. Camporesi and A. Higuchi, “Spectral functions and zeta functions in hyperbolic spaces,” J. Math. Phys. 35 (1994) 4217–4246.
  * (83) P. A. M. Dirac, “The Electron Wave Equation in De-Sitter Space,” Annals Math. 36 (1935) 657–669.
  * (84) F. Gursey and T. D. Lee, “Spin 1/2 Wave Equation in De Sitter Space,” Proc. Nat. Acad. Sci. 49 (1963) 179–186.
  * (85) M. Henningson and K. Sfetsos, “Spinors and the AdS / CFT correspondence,” Phys. Lett. B 431 (1998) 63–68, arXiv:hep-th/9803251.
  * (86) M. Bander and C. Itzykson, “Quantum Field Theory Calculation of Two-Dimensional Ising Model Correlation Function,” Phys. Rev. D 15 (1977) 463.