Results 151 to 160 of about 341 (179)

Symmetries and pseudo-Riemannian manifolds

Reports on Mathematical Physics, 1988
Analogues of the classical Bochner-Yano and Hopf-Bochner theorems for closed Riemannian manifolds are investigated in the case of noncompact pseudo-Riemannian spaces. It turns out that the hyperbolic versions of these theorems are much weaker, i.e. the relationship between curvature, topology and symmetry (the Killing vector fields) is not so strong as
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Soliton Excitations in Terms of Pseudo-Riemannian Manifolds

physica status solidi (b), 1985
AbstractAdvantages are shown of description of one‐dimensional ferromagnetic soliton excitations in an anisotropic medium in terms of a pseudo‐Riemannian manifold. The soliton appears then as a solution of a linear equation of motion of the Schrödinger type in an isotropic curved space of observations equipped with a pseudo‐Riemannian metric ...
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3. Pseudo-Riemannian manifolds

2002
3.1 Affine connections 3.2 The Levi-Civita connection 3.3 Tubular neighborhood 3.4 Curvature 3.5 E.
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Special homogeneous structures on pseudo-Riemannian manifolds

2008
The authors investigate homogeneous pseudo-Riemannian structures. They focus on a particular class of homogeneous structures named \textit{special}, and they show that all homogeneous structures on a compact orientable pseudo-Riemannian are special. Examples of such structures are the pseudo-Riemannian structures oft he class \(\mathcal T\)\(_2\oplus ...
B. DE LEO, MARINOSCI, Rosa Anna
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Almost *-η-Ricci solitons on Kenmotsu pseudo-Riemannian manifolds

Analysis (Germany), 2022
V Venkatesha
exaly  

Almost α-Kenmotsu Pseudo-Riemannian Manifolds with CR-Integrable Structure

Symmetry, 2023
Håkan ÖZTÜRK, Sermin ÖZTÜRK
exaly  

Families of Geodesic Orbit Spaces and Related Pseudo-Riemannian Manifolds

Journal of Geometric Analysis, 2023
Joseph A Wolf, Wolf Joseph A
exaly  

Conformally flat homogeneous pseudo-Riemannian four-manifolds

Tohoku Mathematical Journal, 2014
Giovanni Calvaruso, Amirhesam Zaeim
exaly  

Pseudo-Jacobian and global inversion of nonsmooth mappings on Riemannian manifolds

Nonlinear Analysis: Theory, Methods & Applications, 2016
E Ghahraei, S Hosseini
exaly  

Reductive homogeneous pseudo-Riemannian manifolds

Monatshefte Fur Mathematik, 1997
P M Gadea, JOSÉ A Oubiña
exaly