Abstract
We address the problem of finding conditions under which a compact Lorentzian manifold is geodesically complete, a property, which always holds for compact Riemannian manifolds. It is known that a compact Lorentzian manifold is geodesically complete if it is homogeneous, or has constant curvature, or admits a time-like conformal vector field. We consider certain Lorentzian manifolds with abelian holonomy, which are locally modelled by the so called pp-waves, and which, in general, do not satisfy any of the above conditions. We show that compact pp-waves are universally covered by a vector space, determine the metric on the universal cover, and prove that they are geodesically complete. Using this, we show that every Ricci-flat compact pp-wave is a plane wave.
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Notes
In the following we will consider compact manifolds of this type. We are aware that for compact manifolds the term wave might not be appropriate, but we use this term since it is established in the literature for manifolds with the given curvature properties. Later we will see that an appropriate name would be screen flat, but this term has other obvious problems.
We thank Wolfgang Globke for pointing us to this reference.
One can also argue in the following way: From Proposition 5 we know that \(\widetilde{V}\) is a parallel vector field on the Riemannian manifold \((\widetilde{\mathcal{N}},\hat{h}) \) but also that \(\widetilde{V}\) as a lift of the complete vector field V is complete. Hence, as \(\widetilde{\mathcal{N}}\) is simply connected, the flow of \(\widetilde{V}\) separates a line \(\mathbb {R}\) from \(\widetilde{\mathcal{N}}\) with orthogonal complement being the leaves \(\hat{\mathcal{S}}\) of the integrable distribution \(\hat{\mathbb {S}}\), again proving the lemma.
In [34] we called these Lorentzian manifolds pr-waves for plane fronted with recurrent rays.
References
Baum, H., Lärz, K., Leistner, T.: On the full holonomy group of Lorentzian manifolds. Math. Z. 277(3–4), 797–828 (2014)
Bérard-Bergery, L., Ikemakhen, A.: On the holonomy of Lorentzian manifolds. In: Differential Geometry: Geometry in Mathematical Physics and Related Topics (Los Angeles, CA, 1990). Proceedings of Symposium in Pure Mathematics, vol. 54, pp. 27–40. American Mathematical Society, Providence (1993)
Berger, M.: Sur les groupes d’holonomie homogène des variétés à connexion affine et des variétés riemanniennes. Bull. Soc. Math. France 83, 279–330 (1955)
Berger, M.: Les espaces symétriques noncompacts. Ann. Sci. École Norm. Sup. 3(74), 85–177 (1957)
Blanco, O.F., Sánchez, M., Senovilla, J.M.M.: Structure of second-order symmetric Lorentzian manifolds. J. Eur. Math. Soc. (JEMS) 15(2), 595–634 (2013)
Brinkmann, H.W.: Einstein spaces which are mapped conformally on each other. Math. Ann. 94(1), 119–145 (1925)
Cahen, M., Wallach, N.: Lorentzian symmetric spaces. Bull. Am. Math. Soc. 79, 585–591 (1970)
Calabi, E., Markus, L.: Relativistic space forms. Ann. Math. 2(75), 63–76 (1962)
Candela, A.M., Flores, J.L., Sánchez, M.: On general plane fronted waves. Geodesics. Gen. Relativ. Gravit. 35(4), 631–649 (2003)
Candela, A.M., Romero, A., Sánchez, M.: Completeness of the trajectories of particles coupled to a general force field. Arch. Ration. Mech. Anal. 208(1), 255–274 (2013)
Candela, A.M., Romero, A., Sánchez, M.: Remarks on the completeness of trajectories of accelerated particles in Riemannian manifolds and plane waves. In: Folio, D. (ed.) International Meeting on Differential Geometry (Córdoba, November 15–17, 2010), pp. 27–38 (2013)
Carrière, Y.: Autour de la conjecture de L. Markus sur les variétés affines. Invent. Math. 95(3), 615–628 (1989)
Conlon, L.: Differentiable Manifolds, 2nd edn. Birkhäuser, Boston (2008)
Derdziński, A., Roter, W.: On compact manifolds admitting indefinite metrics with parallel Weyl tensor. J. Geom. Phys. 58(9), 1137–1147 (2008)
Derdziński, A., Roter, W.: The local structure of conformally symmetric manifolds. Bull. Belg. Math. Soc. Simon Stevin 16(1), 117–128 (2009)
Derdziński, A., Roter, W.: Compact pseudo-Riemannian manifolds with parallel Weyl tensor. Ann. Global Anal. Geom. 37(1), 73–90 (2010)
Di Scala, A.J., Olmos, C.: The geometry of homogeneous submanifolds of hyperbolic space. Math. Z. 237(1), 199–209 (2001)
Dumitrescu, S., Zeghib, A.: Géométries lorentziennes de dimension 3: classification et complétude. Geom. Dedic. 149, 243–273 (2010)
Ehlers, J., Kundt, W.: Exact solutions of the gravitational field equations. In: Witten, L. (ed.) Gravitation: An Introduction to Current Research, pp. 49–101. Wiley, New York (1962)
Fischer, M.: Lattices of oscillator groups (2013). ArXiv e-prints
Flores, J.L., Sánchez, M.: On the geometry of pp-wave type spacetimes. In: Analytical and Numerical Approaches to Mathematical Relativity. Lecture Notes in Physics, vol. 692, pp. 79–98. Springer, Berlin (2006)
Galaev, A.S.: Metrics that realize all Lorentzian holonomy algebras. Int. J. Geom. Methods Mod. Phys. 3(5–6), 1025–1045 (2006)
Galaev, A.S., Leistner, T.: Holonomy groups of Lorentzian manifolds: classification, examples, and applications. In: Recent Developments in Pseudo-Riemannian Geometry. ESI Lectures in Mathematics and Physics, pp. 53–96. European Mathematical Society, Zürich (2008)
Globke, W., Leistner, T.: Locally homogeneous pp-waves (2014, preprint). arXiv:1410.3572
Hull, C.M.: Exact pp-wave solutions of 11-dimensional supergravity. Phys. Lett. B 139(1–2), 39–41 (1984)
Joyce, D.D.: Compact Manifolds with Special Holonomy. Oxford Mathematical Monographs. Oxford Univerity Press, New York (2000)
Kamishima, Y.: Completeness of Lorentz manifolds of constant curvature admitting Killing vector fields. J. Differ. Geom. 37(3), 569–601 (1993)
Kath, I., Olbrich, M.: Compact quotients of Cahen–Wallach spaces (2015, preprint). arXiv:1501.01474
Klingler, B.: Complétude des variétés lorentziennes à courbure constante. Math. Ann. 306(2), 353–370 (1996)
Kobayashi, S., Nomizu, K.: Foundations of Differential Geometry, vol. 2. Interscience Wiley, New York (1969)
Kulkarni, R.S.: Proper actions and pseudo-Riemannian space forms. Adv. Math. 40(1), 10–51 (1981)
Lärz, K.: Global aspects of holonomy in pseudo-Riemannian geometry. Ph.D. thesis, Humboldt-Universität zu Berlin (2011). http://edoc.hu-berlin.de/dissertationen/
Leistner, T.: Lorentzian manifolds with special holonomy and parallel spinors. Rend. Circ. Mat. Palermo (2) Suppl. (69), 131–159 (2002)
Leistner, T.: Screen bundles of Lorentzian manifolds and some generalisations of pp-waves. J. Geom. Phys. 56(10), 2117–2134 (2006)
Leistner, T.: On the classification of Lorentzian holonomy groups. J. Differ. Geom. 76(3), 423–484 (2007)
Marsden, J.: On completeness of homogeneous pseudo-Riemannian manifolds. Indiana Univ. J. 22, 1065–1066 (1972/73)
Medina, A., Revoy, P.: Les groupes oscillateurs et leurs réseaux. Manuscr. Math. 52(1–3), 81–95 (1985)
Milnor, J.: Morse Theory. Based on Lecture Notes by M. Spivak and R. Wells. Annals of Mathematics Studies, vol. 51. Princeton University Press, Princeton (1963)
O’Neill, B.: Semi-Riemannian Geometry. Academic Press, London (1983)
Palais, R.S.: A global formulation of the Lie theory of transformation groups. Mem. Am. Math. Soc. 22:iii + 123 (1957)
Romero, A., Sánchez, M.: On the completeness of geodesics obtained as a limit. J. Math. Phys. 34(8), 3768–3774 (1993)
Romero, A., Sánchez, M.: On completeness of certain families of semi-Riemannian manifolds. Geom. Dedic. 53(1), 103–117 (1994)
Romero, A., Sánchez, M.: On completeness of compact Lorentzian manifolds. In: Geometry and Topology of Submanifolds, VI (Leuven, 1993/Brussels, 1993), pp. 171–182. World Science Publications, River Edge (1994)
Romero, A., Sánchez, M.: Completeness of compact Lorentz manifolds admitting a timelike conformal Killing vector field. Proc. Am. Math. Soc. 123(9), 2831–2833 (1995)
Sánchez, M.: Structure of Lorentzian tori with a Killing vector field. Trans. Am. Math. Soc. 349(3), 1063–1080 (1997)
Sánchez, M.: On the completeness of trajectories for some mechanical systems. In: Geometry, Mechanics and Dynamics: The Legacy of Jerry Marsden. Fields Institute Communications Series (2013)
Schimming, R.: Riemannsche Räume mit ebenfrontiger und mit ebener Symmetrie. Math. Nachr. 59, 128–162 (1974)
Schliebner, D.: On the full holonomy of Lorentzian manifolds with parallel Weyl tensor (2012, preprint). arXiv:1204.5907
Schliebner, D.: On Lorentzian manifolds with highest first Betti number. Annal. de l’Inst. Fourier (2015, to appear). arXiv:1311.6723
Teschl, G.: Ordinary Differential Equations and Dynamical Systems. Graduate Studies in Mathematics, vol. 140. American Mathematical Society, Providence (2012)
Tricerri, F., Vanhecke, L.: Homogeneous Structures on Riemannian Manifolds. London Mathematical Society Lecture Note Series, vol. 83. Cambridge University Press, Cambridge (1983)
Wolf, J.A.: Spaces of Constant Curvature. McGraw-Hill Book Co., New York (1967)
Yurtsever, U.: A simple proof of geodesical completeness for compact space-times of zero curvature. J. Math. Phys. 33(4), 1295–1300 (1992)
Acknowledgments
We would like to thank Helga Baum and Miguel Sánchez for helpful discussions and comments on the first draft of the paper. We also thank the referees for valuable comments and Ines Kath for alerting us to the implications our result has for locally symmetric spaces.
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This work was supported by the Group of Eight Australia and the German Academic Exchange Service through the Go8-DAAD Joint Research Co-operation Scheme. T. Leistner acknowledges support from the Australian Research Council via the Grants FT110100429 and DP120104582. D. Schliebner was funded by the Berlin Mathematical School.
Dedicated to Helga Baum on the occasion of her 60th birthday.
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Leistner, T., Schliebner, D. Completeness of compact Lorentzian manifolds with abelian holonomy. Math. Ann. 364, 1469–1503 (2016). https://doi.org/10.1007/s00208-015-1270-4
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DOI: https://doi.org/10.1007/s00208-015-1270-4