Results 51 to 60 of about 1,198,709 (262)
On concurrent vector fields on Riemannian manifolds
AIMS Mathematics, 2023 It is shown that the presence of a non-zero concurrent vector field on a Riemannian manifold poses an obstruction to its topology as well as certain aspects of its geometry.
Amira Ishan
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EEG-Based User Reaction Time Estimation Using Riemannian Geometry Features [PDF]
IEEE transactions on neural systems and rehabilitation engineering, 2017 Riemannian geometry has been successfully used in many brain–computer interface (BCI) classification problems and demonstrated superior performance. In this paper, for the first time, it is applied to BCI regression problems, an important category of BCI
Dongrui Wu +5 more
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Nonassociative Riemannian geometry by twisting [PDF]
Journal of Physics: Conference Series, 2010 Many quantum groups and quantum spaces of interest can be obtained by cochain (but not cocycle) twist from their corresponding classical object. This failure of the cocycle condition implies a hidden nonassociativity in the noncommutative geometry already known to be visible at the level of differential forms.
Shahn Majid, Edwin J. Beggs
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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
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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
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Riemannian Curl in Contact Geometry [PDF]
International Mathematics Research Notices, 2014 16 pages, Theorem 5.2.1 ...
Bouarroudj, S., Ovsienko, Valentin
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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.
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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 +1 more
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Contact Riemannian geometry and thermodynamics
Differential Geometry and its Applications, 1998 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gerardo Hernández, Ernesto A. Lacomba
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Geometry of Manifolds and Applications
MathematicsThis 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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