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相关论文: On Slant Riemannian Submersions For Cosymplectic M…

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We introduce slant Riemannian submersions from Sasakian manifolds onto Riemannian manifolds. We survey main results of slant Riemannian submersions defined on Sasakian manifolds. We also give an example of such slant submersions.

微分几何 · 数学 2013-09-11 I. Küpeli Erken , C. Murathan

In the present paper, we introduce bi-slant submersions from almost Hermitian manifolds onto Riemannian manifolds as a generalization of invariant, anti-invariant, semi-invariant, slant, semi-slant and hemi-slant Riemannian submersions. We…

综合数学 · 数学 2020-03-10 Cem Sayar , Mehmet Akif Akyol , Rajendra Prasad

We introduce anti-invariant Riemannian submersions from cosymplectic manifolds onto Riemannian manifolds. We survey main results of anti-invariant Riemannian submersions defined on cosymplectic manifolds. We investigate necessary and…

微分几何 · 数学 2013-09-11 C. Murathan , I. Küpeli Erken

In this paper, we develop and introduce a Casorati inequality for Riemannian submersions involving the Casorati curvatures of both the vertical and horizontal distributions. A general form of the inequality is derived for Riemannian…

微分几何 · 数学 2026-02-18 Ravindra Singh

We introduce slant submersions from almost Hermitian manifolds onto Riemannian manifolds. We give examples, investigate the geometry of foliations which are arisen from the definition of a Riemannian submersion and check the harmonicity of…

微分几何 · 数学 2010-06-02 Bayram Sahin

Let F be a Riemannian submersion from an almost Hermitian manifold (M; gM; J) onto a Riemannian manifold (N; gN). We introduce the notion of the semi-slant submersion. And then we obtain some properties about it. In particular, we give some…

微分几何 · 数学 2012-06-08 Kwang-Soon Park , Rajendra Prasad

Let F be a Riemannian submersion from an almost Hermitian manifold (M; gM; J) onto a Riemannian manifold (N; gN). We introduce the notion of the v-semi-slant submersion. And then we obtain some properties on it. In particular, we give some…

微分几何 · 数学 2012-06-08 Kwang-Soon Park

We introduce slant Riemannian maps from Riemannian manifolds to almost Hermitian manifolds as a generalization of slant immersions, invariant Riemannian maps and anti-invariant Riemannian maps. We give examples, obtain characterizations and…

微分几何 · 数学 2012-06-18 Bayram Sahin

We introduce anti-invariant Riemannian submersions from Sasakian manifolds onto Riemannian manifolds. We survey main results of anti-invariant Riemannian submersions defined on Sasakian manifolds. We investigate necessary and sufficient…

微分几何 · 数学 2013-02-21 I. Küpeli Erken , C. Murathan

We consider modified scalar curvature functions for Riemannian manifolds equipped with smooth measures. Given a Riemannian submersion whose fiber transport is measure-preserving up to constants, we show that the modified scalar curvature of…

微分几何 · 数学 2007-05-23 John Lott

We obtain sharp inequalities involving the Ricci curvature and the scalar curvature for anti-invariant Riemannian submersions from Sasakian space forms onto Riemannian manifolds.

微分几何 · 数学 2019-01-15 Hülya Aytimur , Cihan Özgür

We give estimates on the intrinsic and the extrinsic curvature of manifolds that are isometrically immersed as cylindrically bounded submanifolds of warped products. We also address extensions of the results in the case of submanifolds of…

微分几何 · 数学 2010-09-20 L. J. Alias , G. P. Bessa , J. F. Montenegro , P. Piccione

As a generalization of holomorphic submersions, anti-invariant submersions and slant submersions, we introduce slant Riemannian maps from almost Hermitian manifolds to Riemannian manifolds. We give examples, obtain the existence conditions…

微分几何 · 数学 2012-06-19 Bayram Sahin

Akyol M.A. [Conformal anti-invariant submersions from cosymplectic manifolds, Hacettepe Journal of Mathematics and Statistic, 46(2), (2017), 177-192.] defined and studied conformal anti-invariant submersions from cosymplectic manifolds. The…

微分几何 · 数学 2020-03-10 Yılmaz Gündüzalp , Mehmet Akif Akyol

In this paper, we study Riemannian, anti-invariant Riemannian and Lagrangian submersions. We prove that the horizontal distribution of a Lagrangian submersion from a Kaehlerian manifold is integrable. We also give some applications of this…

微分几何 · 数学 2015-01-12 Hakan Mete Taştan

We study curvature invariants of a sub-Riemannian manifold (i.e., a manifold with a Riemannian metric on a non-holonomic distribution) related to mutual curvature of several pairwise orthogonal subspaces of the distribution, and prove…

微分几何 · 数学 2022-12-27 Vladimir Rovenski

This paper focuses on deriving several curvature inequalities involving the Ricci and scalar curvatures of the horizontal and vertical distributions in anti-invariant Riemannian submersions from quaternionic space forms onto Riemannian…

微分几何 · 数学 2025-07-10 Kirti Gupta , Punam Gupta , R. K. Gangele

Considering Riemannian submersions, we find necessary and sufficient conditions for when sub-Riemannian normal geodesics project to curves of constant first geodesic curvature or constant first and vanishing second geodesic curvatures. We…

微分几何 · 数学 2017-07-18 Mauricio Godoy Molina , Erlend Grong , Irina Markina

In this paper we obtain the structure equation of a contact-complex Riemannian submersion and give some applications of this equation in the study of almost cosymplectic manifolds with Kaehler fibres.

微分几何 · 数学 2011-06-01 Stere Ianus , Adrian Mihai Ionescu , Raluca Mocanu , Gabriel Eduard Vilcu

As a generalization of slant submersions (Sahin, 2011), semi-slant submersions (Park and Prasad), and slant Riemannian maps (Sahin), we define the notion of semi-slant Riemannian maps from almost Hermitian manifolds to Riemannian manifolds.…

微分几何 · 数学 2012-09-06 Kwang-Soon Park
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