Some remarks on a family of warped product pointwise semi-slant submanifolds of Kaehler manifold
Year 2021,
Volume: 50 Issue: 3, 634 - 646, 07.06.2021
Ali H. Alkhaldi
Akram Ali
,
Mehmet Akif Akyol
Abstract
The purpose of this paper is to provide the complete classifications of the second fundamental form inequality for a warped product pointwise semi-slant submanifold in a Kaehler manifold which was obtained by Şahin [Th. 5.2, Warped product pointwise semi-slant submanifold of Kaehler manifold, Port. Math. 2013] in terms of intrinsic and extrinsic invariants. In this paper, we give some conditions that are not addressed or considered in the cited paper mentioned above. Finally, we provide necessary and sufficient conditions that satisfy inequalities' equalities.
Supporting Institution
King Khalid University
Project Number
R.G.P.2/57/40
Thanks
The authors extend their appreciation to the deanship of scientific research at King Khalid University for funding this work through research groups program.
References
- [1] A. Ali, and P. Laurian-Ioan, Geometry of warped product immersion of Kenmotsu
space forms and its application to slant immersions, J. Geom. Phy. 114, 276-290,
2017.
- [2] A. Ali and P. Laurian-Ioan, Geometric classification of warped products isometrically
immersed into Sasakian space forms, Math. Nachr. 292, 234–251, 2019.
- [3] A. Ali, and C. Özel, Geometry of warped product pointwise semi-slant submanifolds
of cosymplectic manifolds and its applications, Int. J. Geom. Methods Mod. Phys. 14,
1750042, 2017.
- [4] A. Ali, S. Uddin, and W.A.M. Othman, Geometry of warped product pointwise semislant
submanifolds of Kaehler manifolds, Filomat 32 (12), 3771-3788, 2017.
- [5] R.L. Bishop, and B. O’Neill, Manifolds of negative curvature, Trans. Amer. Math.
Soc. 145, 1-9, 1969.
- [6] O. Calin and D.C. Chang, Geometric mechanics on Riemannian manifolds: applications
to partial differential equations, Springer Science & Business Media, 2006.
- [7] B.-Y. Chen, Geometry of warped product CR-submanifold in Kaehler manifolds I,
Monatsh. Math. 133, 177-195, 2001.
- [8] B.-Y. Chen, Another general inequality for warped product CR-warped product submanifold
in complex space forms, Hokkaido Math. J. 32, 415-444, 2003.
- [9] B.-Y. Chen, and O. Garay, Pointwise slant submanifolds in almost Hermitian manifolds,
Turkish J. Math. 36, 630-640, 2012.
- [10] F. Etayo, On quasi-slant submanifolds of an almost Hermitian manifold, Publ. Math.
Debrecen 53, 217-223, 1998.
- [11] A. Mustafa, Geometry of warped product submanifolds of Riemannian manifolds, PhD
thesis, University of Malaya, 2016.
- [12] J. Nash, The imbedding problem for Riemannian manifolds, Ann. of Math. 63, 2063,
1956.
- [13] N. Papaghiuc, Semi-slant submanifold of Kaehler manifold, An. St. Univ. Al. I. Cuza.
Iasi. 40, 55-61, 1994.
- [14] B. Şahin, Non-existence of warped product semi-slant submanifolds of Kaehler manifolds,
Geom. Dedicata 117, 95202, 2006.
- [15] B. Şahin, Warped product pointwise semi-slant submanifold of Kaehler manifold, Port.
Math. 70, 251-268, 2013.
- [16] M.M. Tripathi, Improved Chen-Ricci inequality for curvature-like tensors and its applications,
Diff. Geom. Appl. 29, 685-698, 2011.
- [17] M. M. Tripathi, C-totally real warped product submanifolds, An. St. Univ. Al. I. Cuza.
Iasi 58 (2), 417-436, 2012.
- [18] B. Ünal, Multiply Warped Products, J. Geom. Phy. 34 (3-4), 287-301, 2000.
- [19] K. Yano and M. Kon, Structures on manifolds, World Scientific, 1984.
Year 2021,
Volume: 50 Issue: 3, 634 - 646, 07.06.2021
Ali H. Alkhaldi
Akram Ali
,
Mehmet Akif Akyol
Project Number
R.G.P.2/57/40
References
- [1] A. Ali, and P. Laurian-Ioan, Geometry of warped product immersion of Kenmotsu
space forms and its application to slant immersions, J. Geom. Phy. 114, 276-290,
2017.
- [2] A. Ali and P. Laurian-Ioan, Geometric classification of warped products isometrically
immersed into Sasakian space forms, Math. Nachr. 292, 234–251, 2019.
- [3] A. Ali, and C. Özel, Geometry of warped product pointwise semi-slant submanifolds
of cosymplectic manifolds and its applications, Int. J. Geom. Methods Mod. Phys. 14,
1750042, 2017.
- [4] A. Ali, S. Uddin, and W.A.M. Othman, Geometry of warped product pointwise semislant
submanifolds of Kaehler manifolds, Filomat 32 (12), 3771-3788, 2017.
- [5] R.L. Bishop, and B. O’Neill, Manifolds of negative curvature, Trans. Amer. Math.
Soc. 145, 1-9, 1969.
- [6] O. Calin and D.C. Chang, Geometric mechanics on Riemannian manifolds: applications
to partial differential equations, Springer Science & Business Media, 2006.
- [7] B.-Y. Chen, Geometry of warped product CR-submanifold in Kaehler manifolds I,
Monatsh. Math. 133, 177-195, 2001.
- [8] B.-Y. Chen, Another general inequality for warped product CR-warped product submanifold
in complex space forms, Hokkaido Math. J. 32, 415-444, 2003.
- [9] B.-Y. Chen, and O. Garay, Pointwise slant submanifolds in almost Hermitian manifolds,
Turkish J. Math. 36, 630-640, 2012.
- [10] F. Etayo, On quasi-slant submanifolds of an almost Hermitian manifold, Publ. Math.
Debrecen 53, 217-223, 1998.
- [11] A. Mustafa, Geometry of warped product submanifolds of Riemannian manifolds, PhD
thesis, University of Malaya, 2016.
- [12] J. Nash, The imbedding problem for Riemannian manifolds, Ann. of Math. 63, 2063,
1956.
- [13] N. Papaghiuc, Semi-slant submanifold of Kaehler manifold, An. St. Univ. Al. I. Cuza.
Iasi. 40, 55-61, 1994.
- [14] B. Şahin, Non-existence of warped product semi-slant submanifolds of Kaehler manifolds,
Geom. Dedicata 117, 95202, 2006.
- [15] B. Şahin, Warped product pointwise semi-slant submanifold of Kaehler manifold, Port.
Math. 70, 251-268, 2013.
- [16] M.M. Tripathi, Improved Chen-Ricci inequality for curvature-like tensors and its applications,
Diff. Geom. Appl. 29, 685-698, 2011.
- [17] M. M. Tripathi, C-totally real warped product submanifolds, An. St. Univ. Al. I. Cuza.
Iasi 58 (2), 417-436, 2012.
- [18] B. Ünal, Multiply Warped Products, J. Geom. Phy. 34 (3-4), 287-301, 2000.
- [19] K. Yano and M. Kon, Structures on manifolds, World Scientific, 1984.