Results 21 to 30 of about 6,895 (197)

Conformal η-Ricci Solitons on Riemannian Submersions under Canonical Variation

open access: yesAxioms, 2022
This research article endeavors to discuss the attributes of Riemannian submersions under the canonical variation in terms of the conformal η-Ricci soliton and gradient conformal η-Ricci soliton with a potential vector field ζ.
Mohd. Danish Siddiqi   +3 more
doaj   +1 more source

Riemannian Submersions with Discrete Spectrum [PDF]

open access: yesJournal of Geometric Analysis, 2010
We prove some estimates on the spectrum of the Laplacian of the total space of a Riemannian submersion in terms of the spectrum of the Laplacian of the base and the geometry of the fibers. When the fibers of the submersions are compact and minimal, we prove that the total space is discrete if and only if the base is discrete.
Bessa, G. Pacelli   +2 more
openaire   +3 more sources

Quasi bi-slant submersions in contact geometry

open access: yesCubo, 2022
The aim of the paper is to introduce the concept of quasi bi-slant submersions from almost contact metric manifolds onto Riemannian manifolds as a generalization of semi-slant and hemi-slant submersions.
Rajendra Prasad   +3 more
doaj   +1 more source

On Quasi Hemi-Slant Submersions

open access: yesCommunications in Advanced Mathematical Sciences, 2023
The paper deals with the notion of quasi hemi-slant submersions from Lorentzian para Sasakian manifolds onto Riemannian manifolds. These submersions are generalization of hemi-slant submersions and semi-slant submersions. In this paper, we also study the
Sushil Kumar, Pramod Kumar Rawat
doaj   +1 more source

The Mixed Scalar Curvature of a Twisted Product Riemannian Manifolds and Projective Submersions

open access: yesMathematics, 2019
In the present paper, we study twisted and warped products of Riemannian manifolds. As an application, we consider projective submersions of Riemannian manifolds, since any Riemannian manifold admitting a projective submersion is necessarily a twisted ...
Vladimir Rovenski   +2 more
doaj   +1 more source

Isotropic Riemannian submersions

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
Summary: In this paper, we present the notion of isotropic submersions between Riemannian manifolds. We first give examples to illustrate this new notion. Then we express a characterization in terms of O'Neill's tensor field T and examine certain relations between sectional curvatures of the total manifold and the base manifold. We also study \(\lambda\
Feyza Esra ERDOĞAN, Bayram ŞAHİN
openaire   +2 more sources

Slant Riemannian submersions from Sasakian manifolds

open access: yesArab Journal of Mathematical Sciences, 2016
We introduce and characterize slant Riemannian submersions from Sasakian manifolds onto Riemannian manifolds. We survey main results of slant Riemannian submersions defined on Sasakian manifolds.
I. Küpeli Erken, C. Murathan
doaj   +1 more source

ON RIEMANNIAN SUBMERSIONS

open access: yesJP Journal of Geometry and Topology, 2019
Summary: Let \(M\) and \(N\) be compact oriented Riemannian manifolds. Let \(\varphi:(M,g)\to(N,h)\) be a horizontal conformal submersion with dilation \(\lambda\) and let \(\tau\) be the tension field of \(\Phi\). The aim of this paper is to prove the theorem stated in the Introduction.
openaire   +3 more sources

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