Results 161 to 170 of about 912 (205)

Comparing the motion of dark matter and standard model particles on cosmological scales. [PDF]

Nat Commun
Grimm N, Bonvin C, Tutusaus I.
europepmc   +1 more source

A Max-Flow Approach to Random Tensor Networks. [PDF]

Entropy (Basel)
Fitter K, Loulidi F, Nechita I.
europepmc   +1 more source

MS-MDDNet: A Lightweight Deep Learning Framework for Interpretable EEG-Based Diagnosis of Major Depressive Disorder. [PDF]

Diagnostics (Basel)
AlAqel R, Hussain M, Al-Ahmadi S.
europepmc   +1 more source

Hyperbolic multi-channel hypergraph convolutional neural network based on multilayer hypergraph. [PDF]

Sci Rep
Bai L, Hu F, Tang C, Mei Z, Liu C.
europepmc   +1 more source

Homogeneous Manifolds all of Whose Geodesics are Closed

Indagationes Mathematicae (Proceedings), 1965
openaire   +2 more sources

Geodesics in reductive homogeneous spaces

Geodesics in reductive homogeneous spaces
openaire  

Homogeneous Lorentzian Spaces Whose Null-geodesics are Canonically Homogeneous

Letters in Mathematical Physics, 2006
A homogeneous Lorentzian space is said to be a null geodesic orbit-space, if all null geodesics are homogeneous. The aim of this paper is to show that the null geodesic orbit-spaces for which all geodesic vectors are canonical admit a non-vanishing homogeneous Lorentzian structure belonging to the class \(T_1\oplus T_3\).
Patrick Meessen, Meessen Patrick
exaly   +3 more sources

Riemannian Manifolds and Homogeneous Geodesics

Springer Monographs in Mathematics, 2020
This book is devoted to Killing vector fields and the one-parameter isometry groups of Riemannian manifolds generated by them. It also provides a detailed introduction to homogeneous geodesics, that is, geodesics that are integral curves of Killing ...
V N Berestovskii, Yu G Nikonorov
exaly   +3 more sources

Homogeneous geodesics and natural reductivity of homogeneous Gödel-type spacetimes

Journal of Geometry and Physics, 2021
Let \((M,g)\) be a homogeneous pseudo-Riemannian manifold and \(G\subset I_0(M,g)\) a connected Lie group of isometries acting transitively on \(M\), so that \((M,g)\) is identified with the pseudo-Riemannian homogeneous space \((G/H,g)\), where \(H\) is the isotropy group at some point \(P_0\in M=G/H\).
Calvaruso G., Zaeim A.
openaire   +2 more sources