Results 31 to 40 of about 73,738 (309)
Geodesic Mappings and Einstein Spaces [PDF]
, 2012 In this paper we study fundamental properties of geodesic mappings with respect to the smoothness class of metrics. We show that geodesic mappings preserve the smoothness class of metrics. We study geodesic mappings of Einstein spaces.
Hinterleitner, Irena, Mikeš, Josef
openaire +2 more sources
Development of Multilayer-Based Map Matching to Enhance Performance in Large Truck Fleet Dispatching
ISPRS International Journal of Geo-Information, 2021 Spatial information technology has been widely used for vehicles in general and for fleet management. Many studies have focused on improving vehicle positioning accuracy, although few studies have focused on efficiency improvements for managing large ...
Ching-Yun Mu +6 more
doaj +1 more source
Optimal transport with branching distance costs and the obstacle problem [PDF]
, 2012 We address the Monge problem in metric spaces with a geodesic distance: (X, d) is a Polish space and dN is a geodesic Borel distance which makes (X,dN) a possibly branching geodesic space.
Cavalletti, Fabio
core +2 more sources
Quasi-Isometric Mesh Parameterization Using Heat-Based Geodesics and Poisson Surface Fills
Mathematics, 2019 In the context of CAD, CAM, CAE, and reverse engineering, the problem of mesh parameterization is a central process. Mesh parameterization implies the computation of a bijective map ϕ from the original mesh M ∈ R 3 to the planar ...
Daniel Mejia-Parra +4 more
doaj +1 more source
On totally geodesic submanifolds in the Jacobian locus [PDF]
, 2015 We study submanifolds of A_g that are totally geodesic for the locally symmetric metric and which are contained in the closure of the Jacobian locus but not in its boundary.
Alessandro Ghigi +6 more
core +4 more sources
Totally geodesic horizontally conformal maps
, 1998 Summary: We obtain a characterization of totally geodesic horizontally conformal maps by a method which arises as a consequence of the Bochner technique for harmonic morphisms. As a geometric consequence we show that the existence of a non-constant harmonic morphism \(\phi\) from a compact Riemannian manifold \(M^m\) of nonnegative Ricci curvature to a
M. T. Mustafa
openalex +4 more sources
Noncommutative Integrability, Moment Map and Geodesic Flows
Annals of Global Analysis and Geometry, 2003 19 pages, minor changes, to appear in Annals of Global Analysis and ...
Bolsinov, Alexey V. +1 more
openaire +3 more sources
Geodesic mappings of compact quasi-Einstein spaces, I
Proceedings of the International Geometry Center, 2020 The paper treats a particular type of pseudo-Riemannian spaces, namely quasi-Einstein spaces with gradient dening vector. These spaces are a generalization of well-known Einstein spaces. There are three types of these spaces that permit locally geodesic mappings. Authors proved "a theorem of disappearance" for compact quasi-Einstein spaces of main type.
O. Latysh, A. Savchenko, V. Kiosak
openaire +6 more sources
On geodesic mappings of symmetric pairs
Proceedings of the International Geometry Center, 2023 The paper treats properties of pseudo-Riemannian spaces admitting non-trivial geodesic mappings. A symmetric pair of pseudo-Riemannian spaces is a pair of spaces with coinciding values of covariant derivatives for their Riemann tensors. It is proved that the symmetric pair of pseudo-Riemannian spaces, which are not spaces of constant curvatures, are ...
Olexandr Latysh +2 more
openaire +2 more sources
A Hofer-Type Norm of Hamiltonian Maps on Regular Poisson Manifold
Journal of Applied Mathematics, 2014 We define a Hofer-type norm for the Hamiltonian map on regular Poisson manifold and prove that it is nondegenerate. We show that the L1,∞-norm and the L∞-norm coincide for the Hamiltonian map on closed regular Poisson manifold and give some sufficient ...
Dawei Sun, Zhenxing Zhang
doaj +1 more source