On Slant Curves in Sasakian Lorentzian 3-Manifolds

In this paper,  we study $C$-parallel mean curvature vector field and $C$-proper mean curvature vector field along a slant Frenet curve in a Sasakian Lorentzian 3-manifold. In particular, we prove that a slant Frenet curve $\gamma$ in a Sasakian Lorentzian $3$-manifold $M$ satisfying $\Delta_{\dot{\gamma}} H =0$ is a geodesic or pseudo-helix with $\kappa^2=\tau^2$. For example, we find slant pseudo-helix in Lorentzian Heisenberg 3-space.                                                                                                                                                                                

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  • [1] Baikoussis, C. and Blair, D. E.: Integral surfaces of Sasakian space forms. J. Geom., 43(1-2), 30–40 (1992).
  • [2] Blair, D. E.: Riemannian Geometry of Contact and Symplectic Manifolds. Progress in Math. 203, Birkhäuser, Boston, Basel, Berlin, (2002).
  • [3] Calvaruso, G.: Contact Lorentzian manifolds. Differential Geom. Appl. 29 , 541-551 (2011).
  • [4] Calvaruso, G. and Perrone, D. : Contact pseudo-metric manifolds. Differential Geom. Appl. 28, 615-634 (2010).
  • [5] Cho, J. T., Inoguchi, J. and Lee, J.-E.: On slant curves in Sasakian 3-manifolds. Bull. Austral. Math. Soc. 74, 359-367 (2006).
  • [6] Ferrandez, A.: Riemannian Versus Lorentzian submanifolds, some open problems. in proc.Workshop on Recent Topics in Differential Geometry, Santiago de Compostera 89 (Depto. Geom. y Topologia, Univ. Santiago de Compostera, 1998), 109-130.
  • [7] Inoguchi, J.: Biharmonic curves in Minkowki 3-space. International Journal of Mathematics and Mathematical Sciences , no. 21, 1365-1368 (2003).
  • [8] Lee, J.-E., Suh, Y. J. and Lee, H.: C-parallel mean curvature vector fields along slant curves in Sasakian 3-manifolds. Kyungpook Math. J. 52 , 49-59 (2012).
  • [9] Lee, J.-E.: Biharmonic spacelike curves in Lorentzian Heigenberg space. Commun. Korean Math. Soc. 33 , no. 4, 1309 –1320 (2018).
  • [10] Lee, J.-E.: Slant curves and contact magnetic curves in Sasakian Lorentzian 3-manifolds. Symmetry, 11, 784, (2019).
  • [11] O’Neill, B.: Semi-Riemannian geometry with application to relativity, Academic Press, 1983.