Results 21 to 30 of about 89,077 (157)

Semi-Invariant Riemannian Submersions with Semi-Symmetric Non-Metric Connection

Journal of New Theory, 2021
In this paper, we investigate semi-invariant Riemannian submersion from a Kaehler manifold with semi-symmetric non-metric connection to a Riemannian manifold. We study the geometry of foliations with semi-symmetric non-metric connection.
Ramazan Sarı
doaj   +1 more source

Contact Semi-Riemannian Structures in CR Geometry: Some Aspects

Axioms, 2019
There is one-to-one correspondence between contact semi-Riemannian structures ( η , ξ , φ , g ) and non-degenerate almost CR structures ( H , ϑ , J ) .
Domenico Perrone
doaj   +1 more source

The R.I. Pimenov unified gravitation and electromagnetism field theory as semi-Riemannian geometry

, 2008
More then forty years ago R.I. Pimenov introduced a new geometry -- semi-Riemannian one -- as a set of geometrical objects consistent with a fibering $ pr: M_n \to M_m.$ He suggested the heuristic principle according to which the physically different ...
A. Chodos, L. D. Landau, N. A. Gromov, N. A. Gromov, N. P. Konopleva, O. Klein, R. I. Pimenov, R. I. Pimenov, R. I. Pimenov, T. P. Searight, Th. Kaluza, Yu. B. Rumer   +11 more
core   +1 more source

Anisotropically Weighted and Nonholonomically Constrained Evolutions on Manifolds

Entropy, 2016
We present evolution equations for a family of paths that results from anisotropically weighting curve energies in non-linear statistics of manifold valued data. This situation arises when performing inference on data that have non-trivial covariance and
Stefan Sommer
doaj   +1 more source

On causality violation in Lyra Geometry

, 2018
In this paper the causality issues are discussed in a non-Riemannian geometry, called Lyra geometry. It is a non-Riemannian geometry originated from Weyl geometry.
Jesus, W. D. R., Santos, A. F.
core   +1 more source

Probing non-Riemannian spacetime geometry [PDF]

, 2008
The equations of motion for matter in non-Riemannian spacetimes are derived via a multipole method. It is found that only test bodies with microstructure couple to the non-Riemannian spacetime geometry.
Audretsch, Babourova, Babourova, Bagrov, Bagrov, Capriz, Corinaldesi, Cosserat, Dirk Puetzfeld, Ehlers, Flanagan, Fock, Frenkel, Gronwald, Havas, Hayashi, Hehl, Hehl, Infeld, Kröner, Mao, Marzke, Mathisson, Mathisson, Mathisson, Mathisson, Mindlin, Nomura, Nomura, Obukhov, Obukhov, Papapetrou, Papapetrou, Papapetrou, Perlick, Pirani, Robertson, Shapiro, Simpson, Stoeger, Trautman, Truesdell, Tulczyjew, Weyssenhoff, Yasskin, Yuri N. Obukhov   +45 more
core   +3 more sources

Geometry of Manifolds and Applications

Mathematics
This editorial presents 24 research articles published in the Special Issue entitled Geometry of Manifolds and Applications of the MDPI Mathematics journal, which covers a wide range of topics from the geometry of (pseudo-)Riemannian manifolds and their ...
Adara M. Blaga
doaj   +1 more source

Anti-Invariant Semi-Riemannian Submersions from Almost Para-Hermitian Manifolds

Journal of Function Spaces and Applications, 2013
We introduce anti-invariant semi-Riemannian submersions from almost para-Hermitian manifolds onto semi-Riemannian manifolds. We give an example, investigate the geometry of foliations which are arisen from the definition of a semi-Riemannian submersion ...
Yılmaz Gündüzalp
doaj   +1 more source

Bounded geometry and leaves [PDF]

, 2016
The main theorem states that any complete connected Riemannian manifold of bounded geometry can be isometrically realized as a leaf with trivial holonomy in a compact Riemannian foliated space.Comment: 21 pages. To appear in Math. Nachr. arXiv admin note:
Lijó, Ramón Barral, López, Jesús A. Álvarez   +1 more
core   +2 more sources

Transversal Lightlike Submanifolds of Metallic Semi-Riemannian Manifolds

, 2018
The Metallic Ratio is fascinating topic that continually generated news ideas. A Riemannian manifold endowed with a Metallic structure will be called a Metallic Riemannian manifold.
Erdoğan, Feyza Esra
core   +1 more source