Results 61 to 70 of about 4,405,798 (247)

Characterization and optimization of satellite complex networks based on hyperbolic space

Digital Communications and Networks
In recent years, the rapid advancement of mega-constellations in Low Earth Orbit (LEO) has led to the emergence of satellite communication networks characterized by a complex interplay between high- and low-altitude orbits and by unprecedented scale ...
Yuanzhi He, Huajun Fu, Di Yan, Shanshan Feng, Hongbo Chen, Xuebin Zhuang   +5 more
doaj   +1 more source

Spacelike Ruled Surface In Hyperbolic 3-Space

Cumhuriyet Science Journal, 2018
In this paper in Hyperbolic space , we study a spacelike ruled surfaces. A spacelike ruledsurface in is acquired by aspacelike geodesic moving along a spacelike curve.
Tuğba Mert
doaj   +1 more source

A Direct Meshless Method for Solving Two-Dimensional Second-Order Hyperbolic Telegraph Equations

Journal of Mathematics, 2020
In this paper, a direct meshless method (DMM), which is based on the radial basis function, is developed to the numerical solution of the two-dimensional second-order hyperbolic telegraph equations.
Fuzhang Wang, Enran Hou
doaj   +1 more source

Convexity on Complex Hyperbolic Space

Journal of Convex Analysis, 2013
In a Riemannian manifold a regular convex domain is said to be \lambda λ
Abardia, Judit, Gallego, Eduardo
openaire   +3 more sources

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay, Cassandre Landes‐Château, Lydiane Mondot, Mikael Cohen, Margherita Popolo, Jérôme de Seze, Bertrand Bourre, Françoise Durand‐Dubief, Olivier Casez, Orhun H. Kantarci, Aksel Siva, Stephanie Baillif, Darin T. Okuda, Letizia Leocani   +13 more
wiley   +1 more source

Normal automorphisms of relatively hyperbolic groups

, 2010
An automorphism of a group G is normal if it fixes every normal subgroup of G setwise. We give an algebraic description of normal automorphisms of relatively hyperbolic groups.
D. Osin, Osin, Denis, Minasyan, Ashot, A. Minasyan   +3 more
core   +1 more source

On Hypersurfaces in Hyperbolic Space

, 2019
In this talk I will report our recent works on convex hypersurfaces in hyperbolic space. To study hypersurfaces in hyperbolic space analytically, one needs to find ways to parametrize it, preferably globally.
Qing, Jie
core   +1 more source

In the hyperbolic theory of special relativity is space also hyperbolic?

In the hyperbolic theory of special relativity the space of velocities, the kinematic space, is hyperbolic of radius of negative curvature c the velocity of light. Space itself could be either Euclidean or hyperbolic.
Barrett, John F.
core   +2 more sources

Hyperbolic normal almost contactmetric hypersurfaces in Euclidean 4-dimensional space

Lietuvos Matematikos Rinkinys, 2005
In Euclidean 4-dimensional space, all hyper surfaces with normal almost contact metric structure of hyperbolic type as well as hyperbolic Sasakian structure are found.
Angelė Baškienė
doaj   +3 more sources

Hyperbolic Factorization Machine

Jisuanji kexue yu tansuo, 2020
Factorization machine (FM) has been widely applied in recommender systems since its publication, and to capture feature interactions, FM represents its 2nd-order coefficient of any two features as inner product of the corresponding embedding vectors in ...
WANG Weihao, CHEN Songcan
doaj   +1 more source