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On the symmetries of the Lorentzian oscillator group

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Abstract

We consider the four-dimensional oscillator group, equipped with a well known one-parameter family of left-invariant Lorentzian metrics. We obtain a full classification of its Ricci (curvature, Weyl) collineations and matter collineations, and also point out the left-invariant collineations.

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References

  1. Batat, W., Castrillon-Lopez, M., Rosado, E.: Four-dimensional naturally reductive pseudo-Riemannian spaces. Diff. Geom. Appl. 41, 48–64 (2015)

  2. Boucetta, M., Medina, A.: Solutions of the Yang-Baxter equations on orthogonal groups: the case of oscillator groups, arXiv:1008.2435v3 [Math DG] (2010)

  3. Brozos-Vazquez, M., Garcia-Rio, E., Gilkey, P., Nikcevic, S., Vazquez-Lorenzo, R.: The geometry of Walker manifolds, Synthesis Lect. on Math. and Stat., Morgan and Claypool Publishers (2009)

  4. Calvaruso, G.: Oscillator spacetimes are Ricci solitons. Nonlinear Anal. 140, 254–269 (2016)

  5. Calvaruso, G., Van der Veken, J.: Totally geodesic and parallel hypersurfaces of four-dimensional oscillator groups. Results Math. 64, 135–153 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  6. Calvino-Louzao, E., Seoane-Bascoy, J., Vazquez-Abal, M.E., Vazquez-Lorenzo, R.: Invariant Ricci collineations on three-dimensional Lie groups, preprint (2013)

  7. Camci, U., Hussain, I., Kucukakca, Y.: Curvature and Weyl collineations of Bianchi type V spacetimes. J. Geom. Phys. 59, 1476–1484 (2009)

    Article  MathSciNet  MATH  Google Scholar 

  8. Camci, U., Hussain, I., Sharif, M.: Matter collineations of spacetime homogeneous Gödel-type metrics. Class. Quantum Grav. 20, 2169–2179 (2003)

    Article  MATH  Google Scholar 

  9. Carot, J., da Costa, J., Vaz, E.G.L.R.: Matter collineations: the inverse “symmetry inheritance” problem. J. Math. Phys., 35, 4832 (1994)

  10. Duran Diaz, R., Gadea, P.M., Oubiña, J.A.: The oscillator group as a homogeneous spacetime. Lib. Math. 19, 9–18 (1999)

    MathSciNet  MATH  Google Scholar 

  11. Duran Diaz, R., Gadea, P.M., Oubiña, J.A.: Reductive decompositions and Einstein-Yang-Mills equations associated to the oscillator group. J. Math. Phys. 40, 3490–3498 (1999)

    Article  MathSciNet  MATH  Google Scholar 

  12. Flores, J.L., Parra, Y., Percoco, U.: On the general structure of Ricci collineations for type B warped spacetime. J. Math. Phys. 45, 3546–3557 (2004)

    Article  MathSciNet  MATH  Google Scholar 

  13. Gadea, P.M., Oubiña, J.A.: Homogeneous Lorentzian structures on the oscillator groups. Arch. Math. 73, 311–320 (1999)

    Article  MathSciNet  MATH  Google Scholar 

  14. Hall, G.: Symmetries and curvature structure in general relativity. World Science Lecture Notes in Physics, vol. 46 (2004)

  15. Hall, G.: Symmetries of the curvature, Weyl and projective tensors on 4-dimensional Lorentz manifolds. Proceedings of the International Conference Differential Geometry Dynamical Systems 2007, pp 89–98, BSG Proceedings, vol. 15, Geom. Balkan Press, Bucharest (2008)

  16. Hall, G., Roy, I., Vaz, E.G.L.R.: Ricci and matter collineations in space-time. Gen. Relat. Gravit. 28, 299–310 (1996)

    Article  MathSciNet  MATH  Google Scholar 

  17. Hussain, I., Qadir, A., Saifullah, K.: Weyl collineations that are not curvature collineations. Int. J. Mod. Phys. D 14, 1431–1437 (2005)

    Article  MathSciNet  MATH  Google Scholar 

  18. Kuhnel, W., Rademacher, H.-B.: Conformal Ricci collineations of space-times. Gen. Relativ. Gravit. 33, 1905–1914 (2001)

    Article  MathSciNet  MATH  Google Scholar 

  19. Levitchev, A.V.: Chronogeometry of an electromagnetic wave given by a bi-invariant metric on the oscillator group. Sib. Math. J. 27, 237–245 (1986)

    Article  Google Scholar 

  20. Müller, D., Ricci, F.: On the Laplace-Beltrami operator on the oscillator group. J. Reine Angew. Math. 390, 193–207 (1988)

    MathSciNet  MATH  Google Scholar 

  21. Stephani, H., Kramer, D., Maccallum, M., Hoenselaers, C., Herlt, E.: Exact solutions of Einstein’s field equations. Cambridge Monographs on Mathematical Physics, 2nd. rev. Ed., Cambridge University Press, Cambridge (2009)

  22. Streater, R.F.: The representations of the oscillator group. Commun. Math. Phys. 4, 217–236 (1967)

    Article  MathSciNet  MATH  Google Scholar 

  23. Tsamparlis, M., Apostolopoulos, P.S.: Ricci and matter collineations of locally rotationally symmetric space-times. Gen. Relat. Gravit. 36, 47–69 (2004)

    Article  MathSciNet  MATH  Google Scholar 

  24. Walker, A.G.: On parallel fields of partially null vector spaces. Q. J. Math. Oxford 20, 135–145 (1949)

    Article  MathSciNet  MATH  Google Scholar 

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Correspondence to Amirhesam Zaeim.

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First author partially supported by funds of the University of Salento and MIUR (PRIN). Second author partially supported by funds of the University of Payame Noor.

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Calvaruso, G., Zaeim, A. On the symmetries of the Lorentzian oscillator group. Collect. Math. 68, 51–67 (2017). https://doi.org/10.1007/s13348-016-0173-3

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  • DOI: https://doi.org/10.1007/s13348-016-0173-3

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