Results 41 to 50 of about 87,606 (230)
Riemannian foliations of bounded geometry [PDF]
Continuing the study of bounded geometry for Riemannian foliations, begun by Sanguiao, we introduce a chart‐free definition of this concept. Our main theorem states that it is equivalent to a condition involving certain normal foliation charts. For this type of charts, it is also shown that the derivatives of the changes of coordinates are uniformly ...
Jesús A. Álvarez López+2 more
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Contact Riemannian geometry and thermodynamics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gerardo Hernández, Ernesto A. Lacomba
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Geometry of Manifolds and Applications
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
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Bounded geometry and leaves [PDF]
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+1 more
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On noncommutative and pseudo-Riemannian geometry [PDF]
We introduce the notion of a semi-Riemannian spectral triple which generalizes the notion of spectral triple and allows for a treatment of semi-Riemannian manifolds within a noncommutative setting. It turns out that the relevant spaces in noncommutative semi-Riemannian geometry are not Hilbert spaces any more but Krein spaces, and Dirac operators are ...
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Riemannian Curl in Contact Geometry [PDF]
16 pages, Theorem 5.2.1 ...
Bouarroudj, S., Ovsienko, Valentin
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On semi-slant $\xi^\perp-$Riemannian submersions
The aim of the present paper to define and study semi-slant $\xi^\perp-$Riemannian submersions from Sasakian manifolds onto Riemannian manifolds as a generalization of anti-invariant $\xi^\perp-$Riemannian submersions, semi-invariant $\xi^\perp ...
Akyol, Mehmet Akif, Sarı, Ramazan
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Geodesic Vector Fields on a Riemannian Manifold
A unit geodesic vector field on a Riemannian manifold is a vector field whose integral curves are geodesics, or in other worlds have zero acceleration. A geodesic vector field on a Riemannian manifold is a smooth vector field with acceleration of each of
Sharief Deshmukh+2 more
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The rolling problem: overview and challenges
In the present paper we give a historical account -ranging from classical to modern results- of the problem of rolling two Riemannian manifolds one on the other, with the restrictions that they cannot instantaneously slip or spin one with respect to the ...
A Agrachev+44 more
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ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis+2 more
wiley +1 more source