Results 11 to 20 of about 82,161 (203)

A Study of Clairaut Semi-Invariant Riemannian Maps from Cosymplectic Manifolds

Axioms, 2022
In the present note, we characterize Clairaut semi-invariant Riemannian maps from cosymplectic manifolds to Riemannian manifolds. Moreover, we provide a nontrivial example of such a Riemannian map.
Yanlin Li, Rajendra Prasad, Abdul Haseeb
exaly   +3 more sources

Geometric properties of almost pure metric plastic pseudo-Riemannian manifolds [PDF]

Heliyon
This paper investigates the geometric and structural properties of almost plastic pseudo-Riemannian manifolds, with a specific focus on three-dimensional cases.
Cagri Karaman, Aydin Gezer, Mohammad Nazrul Islam Khan, Sedanur Ucan   +3 more
doaj   +2 more sources

Heterogeneous Riemannian Manifolds [PDF]

International Journal of Mathematics and Mathematical Sciences, 2010
We solve Ambrose's Problem for a generic class of Riemannian metrics on a smooth manifold, namely, the class of heterogeneous metrics.
James J. Hebda
doaj   +2 more sources

Geometric Inequalities for a Submanifold Equipped with Distributions

Mathematics, 2022
The article introduces invariants of a Riemannian manifold related to the mutual curvature of several pairwise orthogonal subspaces of a tangent bundle. In the case of one-dimensional subspaces, this curvature is equal to half the scalar curvature of the
Vladimir Rovenski
doaj   +1 more source

Geodesic Mappings of Semi-Riemannian Manifolds with a Degenerate Metric

Mathematics, 2022
This article introduces the concept of geodesic mappings of manifolds with idempotent pseudo-connections. The basic equations of canonical geodesic mappings of manifolds with completely idempotent pseudo-connectivity and semi-Riemannian manifolds with a ...
Igor G. Shandra, Josef Mikeš
doaj   +1 more source

Integral Formulas for Almost Product Manifolds and Foliations

Mathematics, 2022
Integral formulas are powerful tools used to obtain global results in geometry and analysis. The integral formulas for almost multi-product manifolds, foliations and multiply twisted products of Riemannian, metric-affine and sub-Riemannian manifolds, to ...
Vladimir Rovenski
doaj   +1 more source

Tensor invariants of generalized Kenmotsu manifolds [PDF]

E3S Web of Conferences, 2021
In this paper, we study the properties of generalized Kenmotsu manifolds, consider the second-order differential geometric invariants of the Riemannian curvature tensor of generalized Kenmotsu manifolds (by the symmetry properties of the Riemannian ...
Shihab Ali Abdul Al Majeed, Rustanov Aligadzhi   +1 more
doaj   +1 more source

Riemannian Hilbert Manifolds [PDF]

, 2017
In this article we collect results obtained by the authors jointly with other authors and we discuss old and new ideas. In particular we discuss singularities of the exponential map, completeness and homogeneity for Riemannian Hilbert quotient manifolds.
Biliotti, Leonardo, Mercuri, Francesco
openaire   +2 more sources

On δ-homogeneous Riemannian manifolds [PDF]

Doklady Mathematics, 2007
We study in this paper previously defined by V.N. Berestovskii and C.P. Plaut $δ$-homogeneous spaces in the case of Riemannian manifolds. Every such manifold has non-negative sectional curvature. The universal covering of any $δ$-homogeneous Riemannian manifolds is itself $δ$-homogeneous.
Berestovskiĭ, V.N., Nikonorov, Yu.G.
openaire   +4 more sources

Slant Riemannian submersions from Sasakian manifolds

Arab 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