Results 81 to 90 of about 85,217 (188)

Killing vector fields of horizontal Liouville type

Comptes Rendus. Mathématique, 2011
On a slit tangent bundle endowed with a Riemannian metric of Sasaki–Finsler type, we introduce two vector fields of horizontal Liouville type and prove that these vector fields are Killing if and only if the base Finsler manifold is of positive constant curvature.
Peyghan, Esmaeil, Tayebi, Akbar
openaire   +2 more sources

Celestial sector in CFT: Conformally soft symmetries

SciPost Physics
We show that time intervals of width $\Delta \tau$ in 3-dimensional conformal field theories (CFT$_3$) on the Lorentzian cylinder admit an infinite dimensional symmetry enhancement in the limit $\Delta \tau → 0$.
Leonardo Pipolo de Gioia, Ana-Maria Raclariu
doaj   +1 more source

Hydrodynamic Killing vector fields on surfaces

Journal of Geometry and Physics
Killing vector fields, which have their origins in Riemannian geometry, have recently garnered attention for their significance in understanding fluid flows on curved surfaces. Owing to the significance of behavior of fluid flows around the boundary and at infinity, in the context of fluid dynamics, Killing vector fields of interest should satisfy the ...
openaire   +2 more sources

Orthonormal Right-Handed Frames on the Two-Sphere and Solutions to Maxwell’s Equations via de Broglie Waves

Mathematics
This paper explores some frame bundles and physical implications of Killing vector fields on the two-sphere S2, culminating in a novel application to Maxwell’s equations in free space.
David Carfì
doaj   +1 more source

On the local extension of Killing vector-fields in Ricci flat manifolds

, 2011
We revisit the problem of extension of Killing vector-fields in smooth Ricci flat manifolds, and its relevance to the black hole rigidity ...
Ionescu, Alexandru D., Klainerman, Sergiu   +1 more
core  

Killing Vector Fields of Invariant Metrics

Geometry
We study the existence of Killing vector fields for right-invariant metrics on low-dimensional Lie groups. Specifically, Lie groups of dimension two, three and four are considered. Before attempting to implement the differential conditions that comprise Killing’s equations, the metric is reduced as much as possible by using the automorphism group of ...
openaire   +1 more source

Gauging generalised symmetries in linear gravity

Journal of High Energy Physics
The theory of a free spin-2 field on Minkowski spacetime has 1-form and (d − 3)-form symmetries associated with conserved currents formed by contractions of the linearised Riemann tensor with conformal Killing-Yano 2-forms. We show that a subset of these
Chris Hull, Maxwell L. Hutt, Ulf Lindström   +2 more
doaj   +1 more source

Rotating AdS3 × S3 and dyonic strings from 3-dimensions

Journal of High Energy Physics
We make a general Killing spinor analysis of a particular D = 3, N = 4 gauged supergravity that comes from a consistent S3 reduction of D = 6, N = (1, 0) supergravity coupled to a single chiral tensor multiplet.
Nihat Sadik Deger, Ceren Ayse Deral, Aritra Saha, Özgür Sarıoğlu   +3 more
doaj   +1 more source

Generalized Komar charges and Smarr formulas for black holes and boson stars

SciPost Physics Core
The standard Komar charge is a $(d-2)$-form that can be defined in spacetimes admitting a Killing vector and which is closed when the vacuum Einstein equations are satisfied.
Romina Ballesteros, Tomás Ortín
doaj   +1 more source

Conformal motions of locally rotationally symmetric Bianchi type I space–times in f(Q) gravity

Results in Physics
In this paper, first, we find locally rotationally symmetric (LRS) Bianchi type I solutions in symmetric teleparallel gravity, which is so-called f(Q) gravity, where f(Q) is the function of non-metricity scalar Q. To explore the solutions, we assume both
Muhammad Jawad Ayyoub, Noura Alhouiti, Muhammad Ramzan, Arshad Ali, Akram Ali   +4 more
doaj   +1 more source