Results 201 to 210 of about 130,273 (231)

On the Killing vector fields of generalized metrics

open access: yesOn the Killing vector fields of generalized metrics
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Spectral Properties of Killing Vector Fields of Constant Length and Bounded Killing Vector Fields

Trends in Mathematics, 2021
This paper is a survey of recent results related to spectral properties of Killing vector fields of constant length and of some their natural generalizations on Riemannian manifolds. One of the main result is the following: If \(\mathfrak {g}\) is a Lie algebra of Killing vector fields on a given Riemannian manifold (M, g), and \(X\in \mathfrak {g ...
Yu G Nikonorov
exaly   +2 more sources

Notes on affine Killing and two-Killing vector fields

Mathematica Slovaca, 2022
Abstract In this paper, we investigate the geometry of affine Killing and two-Killing vector fields on Riemannian manifolds. More specifically, a new characterization of an Euclidean space via the affine Killing vector fields are given. Some conditions for an affine Killing and two-Killing vector field to be a conformal (homothetic) or ...
Wenjie Wang
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Lorentzian manifolds admitting a killing vector field

Nonlinear Analysis: Theory, Methods & Applications, 1997
The author reviews in depth the geometric consequences of the existence of a (non-trivial) Killing vector field \(K\) on a Lorentzian manifold \((M,g)\). He mainly considers the case in which \(K\) satisfies \(g(K,K)
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On the geometry of orbits of killing vector fields

Differential Equations, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Narmanov, A. Ya., Saitova, S. S.
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KILLING VECTOR FIELDS OF A SPACETIME

SUT Journal of Mathematics, 1999
The author studies geodesics of an \(n\)-dimensional spacetime with a specified metric of constant curvature, which can be classified as one of the de Sitter cases for \(n=4\). It is shown that the geodesics of such spacetimes are plane quadratic curves.
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On Discrete Killing Vector Fields and Patterns on Surfaces

Computer Graphics Forum, 2010
AbstractSymmetry is one of the most important properties of a shape, unifying form and function. It encodes semantic information on one hand, and affects the shape's aesthetic value on the other. Symmetry comes in many flavors, amongst the most interesting being intrinsic symmetry, which is defined only in terms of the intrinsic geometry of the shape ...
Ben-Chen, Mirela   +3 more
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Killing and Affine Killing Vector Fields

1999
We start this chapter with upto date information on divergence theorems and integral formulas. In particular, we provide new information on the validity of divergence theorem for semi-Riemannian manifolds with boundary. Then we review on the existence of Killing and affine Killing vectors and their kinematic and dynamic properties.
Krishan L. Duggal, Ramesh Sharma
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On Harmonic and Killing Vector Fields

The Annals of Mathematics, 1952
Publisher Summary This chapter discusses a formula that gives immediately the proofs of Bochner Theorems for an orientable space and enables to see clearly, the way the contrast between harmonic and Killing vector fields arises. From this general formula, a theorem can be deduced that states that, in a compact orientable Riemannian space with ...
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The exterior derivative as a Killing vector field

Israel Journal of Mathematics, 1996
The authors prove that for any graded metric on a graded manifold there exists a unique torsionless and metric graded connection. The formula used to define the metric graded connection coincides with the one given by the reviewer for even metrics on supermanifolds [cf. the reviewer, Preprint, Seminarul de Mecanica, Univ. Timisoara 30 (1990)]. Starting
Monterde, J., Sánchez-Valenzuela, O. A.
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