Results 1 to 10 of about 382 (80)
On quasi-geodesic mappings of special pseudo-Riemannian spaces
Pracì Mìžnarodnogo Geometričnogo Centru, 2022 The present paper continues the study of quasi-geodesic mappings f:(Vn, gij, Fih) → (V'n,g'ij, Fih) of pseudo-Riemannian spaces Vn, V'n with a generalized-recurrent structure Fih of parabolic type.
Irina Kurbatova, M. Pistruil
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Canonical quasi-geodesic mappings of special pseudo-Riemannian spaces
Pracì Mìžnarodnogo Geometričnogo Centru, 2022 The present paper continues the study of quasi-geodesic mappings f:(Vn, gij, Fih) → (V'n,g'ij, Fih) of pseudo-Riemannian spaces Vn, V'n with a generalized-recurrent structure Fih of parabolic type.
Irina Kurbatova, M. Pistruil
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Fundamental theorems of quasi-geodesic mappings of generalized-recurrent-parabolic spaces
Pracì Mìžnarodnogo Geometričnogo Centru, 2023 In previous papers we studied mappings of pseudo-Riemannian spaces being mutually quasi-geodesic and almost geodesic of the 2nd type. As a result, we arrived at the quasi-geodesic mapping f: (Vn, gij, Fih) → (Vn, gij, Fih) of spaces with an affine ...
Irina Kurbatova +2 more
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Regularities of the theory of quasi-geodesic mappings of special parabolic spaces
Pracì Mìžnarodnogo Geometričnogo CentruWe study quasi-geodesic mappings (QGM) of generalized-recurrent-parabolic spaces f: (Vn, gij, Fih) → (V'n, g'ij, Fih). QGM can be of two types: general and canonical. This article examines the QGM of the general type.
Iryna Kurbatova +2 more
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Geodesic mappings of compact quasi-Einstein spaces, I
Pracì Mìžnarodnogo Geometričnogo Centru, 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.
Volodymyr Kiosak +2 more
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Geodesic mappings of quasi-Einstein spaces with a constant scalar curvature
Математичні Студії, 2020 In this paper we study a special type of pseudo-Riemannian spaces - quasi-Einstein spaces of constant scalar curvature. These spaces are generalizations of known Einstein spaces.
V. A. Kiosak, G. V. Kovalova
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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
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Nuclear Physics BThe primary objective of the article is to investigate the symmetry and pseudosymmetry properties of the Reissner-Nordström-de Sitter (briefly, RNdS) spacetime. The secondary aim of the paper is to explore the notion of Ricci solitons in RNdS spacetimes.
Absos Ali Shaikh, Kamiruzzaman
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On canonscal quasi-geodesic mappings of recurrent-parabolic spaces
Pracì Mìžnarodnogo Geometričnogo Centru, 2018 The article is devoted to the problem of holomorphically projective transformations of locally conformal Kaehler manifolds. it's worth to be noted, that J. Mikes and Z. Radulovich have proved that a locally conformal Kaehler manifold does not admit finite nontrivial holomorphically projective mappings for a Levi-Civita connection.
Yevhen Cherevko, Olena Chepurna
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Electronic Journal of Differential Equations, 1998 A method for the generation of quasi-isometric boundary-fitted curvilinear coordinates for arbitrary domains is developed on the basis of the quasi-isometric mappings theory and conformal representation of spherical and hyperbolic geometries.
Gennadii A. Chumakov, Sergei G. Chumakov
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