New curvature tensors along Riemannian submersions

Autor: Akyol, Mehmet Akif, Ayar, Gülhan
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
Popis: In 1966, B. O'Neill [The fundamental equations of a submersion, Michigan Math. J., Volume 13, Issue 4 (1966), 459-469.] obtained some fundamental equations and curvature relations between the total space, the base space and the fibres of a submersion. In the present paper, we define new curvature tensors along Riemannian submersions such as Weyl projective curvature tensor, concircular curvature tensor, conharmonic curvature tensor, conformal curvature tensor and $M-$projective curvature tensor, respectively. Finally, we obtain some results in case of the total space of Riemannian submersions has umbilical fibres for any curvature tensors mentioned by the above.
Comment: 24 pages
Databáze: arXiv