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Related papers: Semi-slant submersions

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We explore h-conformal semi-invariant submersions and almost h-conformal semi-invariant submersions originating from quaternionic K\"ahler manifolds to Riemannian manifolds. Our investigation focuses on the geometric characteristics of…

Differential Geometry · Mathematics 2025-06-19 Punam Gupta , Kirti Gupta

We classify the semi-Riemannian submersions from a pseudo-hyperbolic space onto a Riemannian manifold under the assumption that the fibres are connected and totally geodesic. Also we obtain the classification of the semi-Riemannian…

Differential Geometry · Mathematics 2007-05-23 Gabriel Baditoiu , Stere Ianus

We provide the necessary and sufficient condition for a pointwise slant submanifold with respect to two anti-commuting almost Hermitian structures to be also pointwise slant with respect to a family of almost Hermitian structures generated…

Differential Geometry · Mathematics 2025-08-04 Adara M. Blaga

As a generalization of anti-invariant Riemannian submersions and Lagrangian Riemannian submersions, we introduce the notions of h-anti-invariant submersions and h-Lagrangian submersions from almost quaternionic Hermitian manifolds onto…

Differential Geometry · Mathematics 2015-07-17 Kwang-Soon Park

We study conformal bi-slant submersions from almost Hermitian manifolds onto Riemannian manifolds as a generalized of conformal anti-invariant, conformal semi-invariant, conformal semi-slant, conformal slant and conformal hemi-slant…

General Mathematics · Mathematics 2020-10-01 Sezin Aykurt Sepet

An isometric immersion $f: M^{n} \rightarrow \tilde M^{m}$ from an $n$-dimensional Riemannian manifold $M^{n}$ into an almost Hermitian manifold $\tilde M^{m}$ of complex dimension $m$ is called pointwise slant if its Wirtinger angles…

Differential Geometry · Mathematics 2020-03-16 Azeb Alghanemi , Noura M. Al-houiti , Bang-Yen Chen , Siraj Uddin

In the present paper, we study the hemi-slant submanifolds of nearly Kaehler manifolds. We study the integrability of distributions involved in the definition of hemi-slant submanifolds. some results are worked out on totally umbilical…

Differential Geometry · Mathematics 2016-03-07 Mehraj Ahmad Lone , Mohammad Hassan Shahid

The present paper deals with the characterization of a new submersion named semi-invariant conformal $\zeta ^{\perp }$-Riemannian submersion from almost contact metric manifolds onto Riemannian manifolds which is the generalization of some…

Differential Geometry · Mathematics 2022-06-22 Uday Chand De , Shashikant Pandey , Punam Gupta

We study some properties of pointwise $k$-slant submanifolds of almost Hermitian manifolds with a special view towards K\"{a}hler manifolds. In particular, we characterize the integrability of the component distributions, treating also the…

Differential Geometry · Mathematics 2025-08-04 Adara M. Blaga , Dan Radu Latcu

In this paper we construct infinitely many examples of a Riemannian submersion from a simple, compact Lie group $G$ with bi-invariant metric onto a smooth manifold that cannot be a quotient of $G$ by a group action. This partially addresses…

Differential Geometry · Mathematics 2009-10-23 Martin Kerin , Krishnan Shankar

In this paper we define and study the slant and semi-slant submanifolds of a Lorentzian almost paracontact manifold. Some necessary and sufficient conditions for a submanifold of a Lorentzian almost paracontact manifold to be slant are…

Differential Geometry · Mathematics 2018-04-11 Selcen Yüksel Perktaş , Erol Kiliç , Sadik Keleş

We give a condition for an almost constant-type manifold to be a constant-type manifold, and holomorphic and $R$-invariant submanifolds of almost Hermitian manifolds are studied. Generalizations of some results in [5] are given.

Differential Geometry · Mathematics 2013-11-12 Hakan Mete Taştan

In this paper we introduce paraquaternionic CR-submanifolds of almost paraquaternionic hermitian manifolds and state some basic results on their differential geometry. We also study a class of semi-Riemannian submersions from…

Differential Geometry · Mathematics 2010-07-13 Stere Ianus , Stefano Marchiafava , Gabriel Eduard Vilcu

In this paper we study the hemi-slant submanifolds of cosymplectic manifolds. Necessary and sufficient conditions for distributions to be integrable are worked out. Some important results are obtained in this direction.

Differential Geometry · Mathematics 2016-03-07 Mehraj Ahmad Lone , Mohamd Saleem Lone , Mohammad Hasan Shahid

We introduce conformal anti-invariant submersions from almost Hermitian manifolds onto Riemannian manifolds. We give examples, investigate the geometry of foliations which are arisen from the definition of a conformal submersion and find…

Differential Geometry · Mathematics 2015-04-23 Mehmet Akif Akyol , Bayram Sahin

We give a general Lie-theoretic construction for anti-invariant almost Hermitian Riemannian submersions, anti-invariant quaternion Riemannian submersions, anti-invariant para-Hermitian Riemannian submersions, anti-invariant para-quaternion…

Differential Geometry · Mathematics 2015-09-17 P. Gilkey , M. Itoh , J. H. Park

In this paper we study a semi-Riemannian submersion from Lorentzian (para)almost contact manifolds and find necessary and sufficient conditions for the characteristic vector field to be vertical or horizontal. We also obtain decomposition…

Differential Geometry · Mathematics 2019-03-01 Morteza Faghfouri , Sahar Mashmouli

In this paper we introduce the notion of slant submanifolds of a Norden manifold. We study their first properties and present a whole gallery of examples.

Differential Geometry · Mathematics 2025-06-24 Alegre , Pablo , Carriazo , Alfonso , Planas , Francisco

We introduce holomorphic Riemannian maps between almost Hermitian manifolds as a generalization of holomorphic submanifolds and holomorphic submersions, give examples and obtain a geometric characterization of harmonic holomorphic…

Differential Geometry · Mathematics 2014-02-25 Bayram Sahin

The main purpose of the present paper is to define and study the notion of quasi bi-slant submanifolds of almost contact metric manifolds. We mainly concerned with quasi bi-slant submanifolds of cosymplectic manifolds as a generalization of…

General Mathematics · Mathematics 2020-03-10 Mehmet Akif Akyol , Selahattin Beyendi