Pointwise hemi-slant Riemannian submersions
Анотація
УДК 517.98
Точкові напівпохилі ріманові занурення
Запропоновано новий тип занурень, які називаються точковими напівпохилими рімановими зануреннями, як узагальнення похилих ріманових занурень, напівпохилих занурень і поточкових похилих занурень з келерових многовидів на ріманові многовиди. Отримано деякі геометричні інтерпретації цього виду занурень щодо загального многовиду, базового многовиду та волокон. Крім того, наведено нетривіальні наочні приклади, що демонструють наявність таких занурень. Насамкінець отримано кілька рівностей та нерівностей для кривини щодо деякого базису.
Посилання
M. A. Akyol, R. Prasad, Semi-slant $ξ^⊥$-, hemi-slant $ξ^⊥$-Riemannian submersions and quasi hemi-slant submanifolds, Contact Geometry of Slant Submanifolds, Springer, Singapore (2022), p. 301–332. DOI: https://doi.org/10.1007/978-981-16-0017-3_11
M. A. Akyol, Y. Gündüzalp, Hemi-slant submersions from almost product Riemannian manifolds, Gulf J. Math., 4, № 3, 15–27 (2016). DOI: https://doi.org/10.56947/gjom.v4i3.70
M. A. Akyol, S. Beyendi, T. Fatima, A. Ali, Pointwise quasi bi-slant submanifolds, Filomat, 36, № 19, 6687–6697 (2022). DOI: https://doi.org/10.2298/FIL2219687A
P. Baird, J. C. Wood, Harmonic morphisms between Riemannian manifolds, Clarendon Press, Oxford (2003). DOI: https://doi.org/10.1093/acprof:oso/9780198503620.001.0001
S. Beyendi, M. A. Akyol, M. Stankovic, Pointwise quasi hemi-slant submanifolds, Filomat, 37, № 1, 127–138 (2023). DOI: https://doi.org/10.2298/FIL2301127B
J. P. Bourguignon, H. B. Lawson, Stability and isolation phenomena for Yang–Mills fields, Commun. Math. Phys., 79, 189–230 (1981). DOI: https://doi.org/10.1007/BF01942061
J. P. Bourguignon, H. B. Lawson, A mathematician visit to Kaluza–Klein theory, Rend. Semin. Mat. Univ. Politec. Torino, Spec. Issue, 143–169 (1989).
B. Y. Chen, O. J. Garay, Pointwise slant submanifolds in almost Hermitian manifolds, Turkish J. Math., 36, 630–640 (2012). DOI: https://doi.org/10.3906/mat-1101-34
F. Etayo, On quasi-slant submanifolds of an almost Hermitian manifold, Publ. Math. Debrecen, 53, 217–223 (1998). DOI: https://doi.org/10.5486/PMD.1998.1968
A. Gray, Pseudo-Riemannian almost product manifolds and submersions, J. Math. and Mech., 16, 715–737 (1967).
M. Falcitelli, S. Ianus, A. M. Pastore, Riemannian submersions and related topics, World Sci. (2004). DOI: https://doi.org/10.1142/9789812562333
J. W. Lee, B. Şahin, Pointwise slant submersions, Bull. Korean Math. Soc., 51, № 4, 1115–1126 (2014). DOI: https://doi.org/10.4134/BKMS.2014.51.4.1115
S. Ianus, M. Visinescu, Kaluza–Klein theory with scalar fields and generalized Hopf manifolds, Class. Quantum Gravity, 4, 1317–1325 (1987). DOI: https://doi.org/10.1088/0264-9381/4/5/026
M. T. Mustafa, Applications of harmonic morphisms to gravity, J. Math. Phys., 41, 6918–6929 (2000). DOI: https://doi.org/10.1063/1.1290381
B. O'Neill, The fundamental equations of a submersion, Michigan Math. J., 13, 458–469 (1966). DOI: https://doi.org/10.1307/mmj/1028999604
T. Pal, S. K. Hui, Hemi-slant $ξ^⊥$-Lorentzian submersions from (LCS)n-manifolds, Mat. Vesnik, 72, № 2, 106–116 (2020).
K. S. Park, Pointwise slant and pointwise semi-slant submanifolds in almost contact metric manifolds, Mathematics, 8, № 6, Article 985 (2020); https://doi.org/10.3390/math8060985. DOI: https://doi.org/10.3390/math8060985
K. S. Park, On the pointwise slant submanifolds, Hermitian–Grassmannian Submanifolds, Springer Proc. Math. and Stat., 203, (2017). DOI: https://doi.org/10.1007/978-981-10-5556-0_21
R. Sari, M. A. Akyol, Hemi-slant $ξ^⊥$-Riemannian submersions in contact geometry, Filomat, 34, № 11, 3747–3758 (2020); https://doi.org/10.2298/FIL2011747S. DOI: https://doi.org/10.2298/FIL2011747S
R. Sachdeva, R. Kumar, S. S. Bhatia, Slant lightlike submersions from an indefinite almost Hermitian manifold into a lightlike manifold, Ukr. Math. J., 68, № 8, 1097–1107 (2016). DOI: https://doi.org/10.1007/s11253-016-1280-8
C. Sayar, H. M. Taştan, F. Özdemir, M. M. Tripathi, Pointwise semi-slant submersions whose total manifolds are locally product Riemannian manifolds, Bull. Malays. Math. Sci. Soc., 43, 809–831 (2020). DOI: https://doi.org/10.1007/s40840-018-00716-2
S. A. Sepet, H. G. Bozok, Pointwise semi-slant submersion, Differential Geometry–Dynamical Systems, 22, 1–10 (2020).
S. A. Sepet, M. Ergüt, Pointwise bi-slant submersions from cosymplectic manifolds, Commun. Fac. Sci. Univ. Ank. S'{e}r. A1, Math. Stat., 69, № 2, 1310–1319 (2020). DOI: https://doi.org/10.31801/cfsuasmas.650697
S. A. Sepet, M. Ergüt, Pointwise slant submersions from cosymplectic manifolds, Turkish J. Math., 40, № 3, 582–593 (2016). DOI: https://doi.org/10.3906/mat-1503-98
S. A. Sepet, M. Ergüt, Pointwise slant submersions from almost product Riemannian manifolds, J. Interdisciplinary Math., 23, № 3, 639–655 (2019); DOI: 10.1080/09720502.2019.1700935. DOI: https://doi.org/10.1080/09720502.2019.1700935
B. Şahin, Anti-invariant Riemannian submersions from almost Hermitian manifolds, Cent. Eur. J. Math., 8, № 3, 437–447 (2010). DOI: https://doi.org/10.2478/s11533-010-0023-6
B. Şahin, Semi-invariant submersions from almost Hermitian manifolds, Canad. Math. Bull., 56, № 1, 173–182 (2013). DOI: https://doi.org/10.4153/CMB-2011-144-8
B. Şahin, Slant submersions from almost Hermitian manifolds, Bull. Math. Soc. Sci. Math. Roumanie, 54(102), № 1, 93–105 (2011).
B. Şahin, Riemannian submersions, Riemannian maps in Hermitian geometry, and their applications, Elsevier, Acad. Press (2017). DOI: https://doi.org/10.1016/B978-0-12-804391-2.50003-8
B. Şahin, Warped product submanifolds of Kaehler manifolds with a slant factor, Ann. Polon. Math., 95, 207–226 (2009). DOI: https://doi.org/10.4064/ap95-3-2
B. Şahin, Warped product pointwise semi-slant submanifolds of Kaehler manifolds, Port. Math., 70, 252–268 (2013). DOI: https://doi.org/10.4171/pm/1934
H. M. Ṭaştan, B. Şahin, S. Yanan, Hemi-slant submersions, Mediterr. J. Math., 13, 2171–2184 (2016). DOI: https://doi.org/10.1007/s00009-015-0602-7
S. Uddin, Ali H. Alkhaldi, Pointwise slant submanifolds and their warped products in Sasakian manifolds, Filomat, 32, № 12, 4131–4142 (2018); https://doi.org/10.2298/FIL1812131U. DOI: https://doi.org/10.2298/FIL1812131U
B. Watson, Almost Hermitian submersions, J. Different. Geom., 11, 147–165 (1976). DOI: https://doi.org/10.4310/jdg/1214433303
B. Watson, $G$-Riemannian submersions and nonlinear gauge field equations of general relativity, Global Analysis on Manifolds, dedicated M. Morse, Teubner-Texte Math., 57, (1983), p. 324–349.
K. Yano, M. Kon, Structures on manifolds, World Sci. (1985). DOI: https://doi.org/10.1142/0067
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