Results 61 to 70 of about 436 (165)

Pair of Associated η-Ricci–Bourguignon Almost Solitons with Vertical Potential on Sasaki-like Almost Contact Complex Riemannian Manifolds

Mathematics
The manifolds studied are almost contact complex Riemannian manifolds, known also as almost contact B-metric manifolds. They are equipped with a pair of pseudo-Riemannian metrics that are mutually associated to each other using an almost contact ...
Mancho Manev
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Groups of basic automorphisms of chaotic Cartan foliations with Eresmann connection [PDF]

Известия высших учебных заведений: Прикладная нелинейная динамика
The purpose of the work is to study the groups of basic automorphisms of chaotic Cartan foliations with Ehresmann connection. Cartan foliations form a category where automorphisms preserve not only the foliation, but also its transverse Cartan geometry ...
Zhukova, Nina Ivanovna, Sheina, Kseniya Igorevna   +1 more
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Addendum to: Indefinite Kasparov Modules and Pseudo-Riemannian Manifolds [PDF]

Annales Henri Poincaré, 2019
Final version, 8 pages.
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Relativistic Localizing Processes Bespeak an Inevitable Projective Geometry of Spacetime

Advances in High Energy Physics, 2017
Surprisingly, the issue of events localization in spacetime is poorly understood and a fortiori realized even in the context of Einstein’s relativity.
Jacques L. Rubin
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On the CR structure of the tangent sphere bundle

Le Matematiche, 1995
We adopt the methods of pseudohermitian geometry (cf. [16]) to study the tangent sphere bundle U(M) over a Riemannian manifold M. If M is an elliptic space form of sectional curvature 1 then U(M) is shown to be globally pseudo-Einstein (in the sense of J.
Elisabetta Barletta, Sorin Dragomir
doaj  

Holonomy algebras of Einstein pseudo-Riemannian manifolds

J. Lond. Math. Soc., 2012
final version accepted to Journal of the London Mathematical ...
openaire   +2 more sources

Biharmonic pseudo-Riemannian submersions from 3-manifolds

Filomat, 2018
We classify the pseudo-Riemannian biharmonic submersion from a 3-dimensional space form onto a surface.
MURATHAN, CENGİZHAN, Erken, Irem Kupeli
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G2(2)∗-structures on pseudo-Riemannian manifolds [PDF]

Journal of Geometry and Physics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Controlled gradient descent: A control theoretical perspective for optimization

Results in Control and Optimization
The Gradient Descent (GD) paradigm is a foundational principle of modern optimization algorithms. The GD algorithm and its variants, including accelerated optimization algorithms, geodesic optimization, natural gradient, and contraction-based ...
Revati Gunjal, Syed Shadab Nayyer, S.R. Wagh, N.M. Singh   +3 more
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Almost Pure Metric Plastic Structures and Ricci Solitons on Four-Dimensional Pseudo-Riemannian Manifolds

Journal of Function Spaces
This paper investigates four-dimensional almost pure metric plastic manifolds equipped with a specific class of tensor fields known as almost plastic structures.
Aydin Gezer, Sedanur Ucan, Cagri Karaman
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