참고문헌
- J. Bae, J. H. Park, K. Sekigawa, and W. Shin, Hypersurfaces in a quasi Kahler manifold, Balkan J. Geom. Appl. 22 (2017), no. 2, 13-20.
- J. Berndt, J. Bolton, and L. M. Woodward, Almost complex curves and Hopf hypersurfaces in the nearly Kahler 6-sphere, Geom. Dedicata 56 (1995), no. 3, 237-247. https://doi.org/10.1007/BF01263564
- D. E. Blair, Riemannian Geometry of Contact and Symplectic Manifolds, second edition, Progress in Mathematics, 203, Birkhauser Boston, Inc., Boston, MA, 2010.
- Y. Chai, J. Kim, J. H. Park, K. Sekigawa, and W. Shin, Notes on quasi contact metric manifolds, An. Stiint. Univ. Al. I. Cuza Iasi. Mat. (N.S.) 62 (2016), no. 2, vol. 1, 349-359.
- S. Deshmukh and F. R. Al-Solamy, Hopf hypersurfaces in nearly Kaehler 6-sphere, Balkan J. Geom. Appl. 13 (2008), no. 1, 38-46.
- J. H. Kim, J. H. Park, and K. Sekigawa, A generalization of contact metric manifolds, Balkan J. Geom. Appl. 19 (2014), no. 2, 94-105.
- J. H. Park, K. Sekigawa, and W. Shin, A remark on quasi contact metric manifolds, Bull. Korean Math. Soc. 52 (2015), no. 3, 1027-1034. https://doi.org/10.4134/BKMS.2015.52.3.1027
- K. Sekigawa, Almost complex submanifolds of a 6-dimensional sphere, Kodai Math. J. 6 (1983), no. 2, 174-185. https://doi.org/10.2996/kmj/1138036713