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SPACES OF CONFORMAL VECTOR FIELDS ON PSEUDO-RIEMANNIAN MANIFOLDS

  • KIM DONG-SOO (Department of Mathematics Chonnam National University) ;
  • KIM YOUNG-HO (Department of Mathematics Kyungpook National University)
  • Published : 2005.05.01

Abstract

We study Riemannian or pseudo-Riemannian manifolds which carry the space of closed conformal vector fields of at least 2-dimension. Subject to the condition that at each point the set of closed conformal vector fields spans a non-degenerate subspace of the tangent space at the point, we prove a global and a local classification theorems for such manifolds.

Keywords

References

  1. H. W. Brinkmann, Einstein spaces which are mapped conformally on each other, Math. Ann. 94 (1925), 119-145 https://doi.org/10.1007/BF01208647
  2. K. L. Duggaland Sharma and R. Sharma, Symmetries of Spacetimes and Rie- mannian Manifolds, Kluwer Academic Publishers, Dordrecht, 1999
  3. D. Eardley, J. Isenberg, J. Marsden, and V. Moncrief, Homothetic and conformal Symmetries of solutions to Einstein's equations, Comm. Math. Phys. 106 (1986), 137-158 https://doi.org/10.1007/BF01210929
  4. D. Garfinkle and Q. Tian, Spacetimes with cosmological constant and a conformal Killing field have constant curvature, Classical Quantum Gravity 4 (1987), 137-139 https://doi.org/10.1088/0264-9381/4/1/016
  5. W. D. Halford, Brinkmann's theorem in general relativity, Gen. Relativity Gravitation 14 (1982), 1193-1195 https://doi.org/10.1007/BF00762643
  6. G. S. Hall, Symmetries and geometry in general relativity, Differential Geom. Appl. 1 (1991), 35-45 https://doi.org/10.1016/0926-2245(91)90020-A
  7. Y. Kerbrat, Transformations conformes des varietes pseudo-riemanniannes, J. Differential Geom. 11 (1976), 547-571
  8. M. G. Kerckhove, Conformal transformations of pseudo-Riemannian Einstein manifolds, Thesis, Brown University, 1988
  9. M. G. Kerckhove, The structure of Einstein spaces admitting conformal motions, Classical Quantum Gravity 8 (1991), 819-825 https://doi.org/10.1088/0264-9381/8/5/007
  10. D. -S. Kim and Y. H. Kim, A characterization of space forms, Bull. Korean Math. Soc. 35 (1998), no. 4, 757-767
  11. D. -S. Kim, Y. H. Kim, S. -B. Kim, and S. -H. Park, Conformal vector fields and totally umbilic hypersurfaces of a pseudo-Riemannian space form, Bull. Korean Math. Soc. 39 (2002), no. 4, 671-680 https://doi.org/10.4134/BKMS.2002.39.4.671
  12. W. Kuhnel, Conformal transformations between Einstein spaces, In: Conformal Geometry, R. S. Kulkarni and U. Pinkal, Aspects Math. E12 (1988), 105-146
  13. W. Kuhnel and H. B. Rademacher, Twistor spinors with zeros, Internat. J. Math. 5 (1994), 877-895 https://doi.org/10.1142/S0129167X94000450
  14. W. Kuhnel and H. B. Rademacher, Conformal vector fields on pseudo-Riemannian spaces, Diffrential Geom. Appl. 7 (1997), 237-250 https://doi.org/10.1016/S0926-2245(96)00052-6
  15. W. Kuhnel and H. B. Rademacher, Essential conformal fields in pseudo-Riemannian geometry, J. Math. Pures Appl. 74 (1995), no. 9, 453-481
  16. B. T. McInnes, Brinkmann's theorem in general relativity and non-Riemannian field theories, Gen. Relativity Gravitation 12 (1980), 767-773 https://doi.org/10.1007/BF00771866
  17. B. O'Neill, Semi-Riemannian geometry with applications to relativity, Academic Press, New York, 1983
  18. P. Penrose and W. Rindler, Spinors and space time, Vol. 1, 2, Cambridge Monogr. Math. Phys. 1986
  19. H. B. Rademacher, Generalized Killing Spinors with imaginary Killing function and conformal Killing fields, In: Global diffrential geometry and global analysis(Berlin, 1990), Lecture Notes in Math. 1481 (1991), Springer, Berlin, 192-198
  20. R. Sharma and K. L. Duggal, A characterization of affine conformal vector field, C. R. Math. Acad. Sci. Soc. R. Can. 7 (1985), 201-205
  21. K. Yano, The theory of Lie derivatives and its applications, North-Holland, Amsterdam, 1957

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