Results 51 to 60 of about 47,101 (158)

Generic riemannian submersions

open access: yesTamkang Journal of Mathematics, 2013
B. Sahin [12] introduced the notion of semi-invariant Riemannian submersions as a generalization of anti-invariant Riemmanian submersions [11]. As a generalization to semi-invariant Riemannian submersions we introduce the notion of generic submersion from an almost Hermitian manifold onto a Riemannian manifold and investigate the geometry of foliations
Tanveer Fatima, Shahid Ali
openaire   +2 more sources

Riemannian Maps

open access: yes, 2017
In this chapter, we study Riemannian maps between Riemannian manifolds. In section 1, we define Riemannian maps and give the main properties of such maps. In section 2, we obtain Gauss-Weingarten-like formulas and then we obtain Gauss, Codazzi, and Ricci
Sahin, Bayram, Bayram Şahin
core   +1 more source

Sufficient conditions for a bundle-like foliation to admit a Riemannian submersion onto its leaf space

open access: yes, 1982
This note furnishes a necessary and sufficient condition for a bundlelike foliation to be defined globally by a Riemannian submersion.
Richard H. Escobales
core   +1 more source

Semi-invariant semi-Riemannian submersions

open access: yesCommunications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2018
In this paper, we introduce semi-invariant semi-Riemannian submersions from para-Kahler manifolds onto semi-Riemannian manifolds. Wegive some examples, investigate the geometry of foliations that arise fromthe de…nition of a semi-Riemannian submersion and check the harmonicity ofsuch submersions.
AKYOL, Mehmet Akif, GÜNDÜZALP, Yılmaz
openaire   +2 more sources

Slant submersions from almost product Riemannian manifolds

open access: yes, 2013
In this paper, we define the concept of almost product Riemannian submersion between almost product Riemannian manifolds. We introduce slant submersions from almost product Riemannian manifolds onto Riemannian manifolds.
Gunduzalp, Yilmaz
core   +1 more source

Structure Theorem for Riemannian surfaces with arbitrary curvature [PDF]

open access: yes, 2008
15 pages, 3 figures.-- MSC2000 codes: 53C20, 53C22, 58A99.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.0090Previously presented as Poster at: X Encuentros de Análisis Real y Complejo (XEARCO'07, Palma de Mallorca, Spain, May 10-13, 2007 ...
Tourís, Eva   +2 more
core   +1 more source

Degenerate Foliations in Sasakian Semi-Riemannian Manifolds [PDF]

open access: yes
In the Semi-Riemannian case we do not have the liability of the existence of such a metric being a difference from the Riemannian case. A Semi-Riemannian manifold provided with a normal contact metric structure is called Sasakian manifold.Semi-Riemannian,
Catalin Angelo Ioan
core  

Riemannian and Sub-Riemannian geodesic flow

open access: yes, 2016
peer reviewedWe show that the geodesic flows of a sub-Riemannian metric and that of a Riemannian extension commute if and only if the extended metric is parallel with respect to a certain connection.
Godoy Molina, Mauricio, GRONG, Erlend
core   +1 more source

Duality and Some Links Between Riemannian Submersion, F-Harmonicity, and Cohomology

open access: yesAxioms
Fundamentally, duality gives two different points of view of looking at the same object. It appears in many subjects in mathematics (geometry, algebra, analysis, PDEs, Geometric Measure Theory, etc.) and in physics.
Bang-Yen Chen, Shihshu (Walter) Wei
doaj   +1 more source

Riemannian submersions, Riemannian maps in Hermitian geometry, and their applications

open access: yes, 2017
Riemannian Submersions, Riemannian Maps in Hermitian Geometry, and their Applications is a rich and self-contained exposition of recent developments in Riemannian submersions and maps relevant to complex geometry, focusing particularly on novel ...
Sahin, Bayram, Sahin B.
core  

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