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On the Existence of Proper Nearly Kenmotsu Manifolds

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Abstract

We prove that a nearly Kenmotsu manifold is locally isometric to the warped product of a real line and a nearly Kähler manifold. As consequence, a normal nearly Kenmotsu manifold is Kenmotsu. Furthermore, we show that there do not exist nearly Kenmotsu hypersurfaces of nearly Kähler manifolds.

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References

  1. Besse, A.L.: Einstein Manifolds. Springer, Berin (1987)

  2. Blair, D.E.: Riemannian Geometry of Contact and Symplectic Manifolds, Progress Math., vol. 203. Birkhäuser, Boston (2010)

  3. Blair D.E., Showers D.K., Yano K.: Nearly Sasakian structures. Kodai Math. Sem. Rep. 27, 175–180 (1976)

    Article  MathSciNet  MATH  Google Scholar 

  4. Cappelletti Montano, B., Dileo, G.: Nearly Sasakian geometry and SU(2)-structures. Ann. Mat. Pura Appl. doi:10.1007/s10231-015-0496-9

  5. Dileo G., Pastore A.M.: Almost Kenmotsu manifolds and local symmetry. Bull. Belg. Math. Soc. 14, 343–354 (2007)

    MathSciNet  MATH  Google Scholar 

  6. Endo H.: On the curvature tensor of nearly cosymplectic manifolds of constant \({\Phi }\)-sectional curvature. An. Ştiint. Univ. Al. I. Cuza Iaşi. Mat. 51(2), 439–454 (2005)

    MathSciNet  MATH  Google Scholar 

  7. Gray A.: Nearly Kähler manifolds. J. Differ. Geom. 4, 283–309 (1970)

    MATH  Google Scholar 

  8. Gray A.: Riemannian manifolds with geodesic symmetries of order 3. J. Differ. Geom. 7, 343–369 (1972)

    MathSciNet  MATH  Google Scholar 

  9. Gray A.: The structure of nearly Kähler manifolds. Math. Ann. 223(3), 233–248 (1976)

    Article  MathSciNet  MATH  Google Scholar 

  10. Kenmotsu K.: A class of almost contact Riemannian manifold. Tohoko Math. J. 24, 93–103 (1972)

    Article  MathSciNet  MATH  Google Scholar 

  11. Olszak Z.: Nearly Sasakian manifolds. Tensor N. S. 33, 277–286 (1973)

    MathSciNet  MATH  Google Scholar 

  12. Olszak Z.: Five-dimensional nearly Sasakian manifolds. Tensor N. S. 34, 273–276 (1980)

    MathSciNet  MATH  Google Scholar 

  13. Shukla A.: Nearly trans-Sasakian manifolds. Kuwait J. Sci. Eng. 23(2), 139–144 (1996)

    MathSciNet  MATH  Google Scholar 

  14. Tashiro Y.: On contact structures of hypersurfaces in complex manifolds. Tohoku Math. J. 15, 50–62 (1963)

    MATH  Google Scholar 

  15. Yano K., Kon M.: Structures on Manifolds. World Scientific, Singapore (1984)

    MATH  Google Scholar 

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Correspondence to I. Küpeli Erken.

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Erken, I.K., Dacko, P. & Murathan, C. On the Existence of Proper Nearly Kenmotsu Manifolds. Mediterr. J. Math. 13, 4497–4507 (2016). https://doi.org/10.1007/s00009-016-0758-9

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  • DOI: https://doi.org/10.1007/s00009-016-0758-9

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