Results 11 to 20 of about 650,978 (244)
Examples of Einstein manifolds in odd dimensions [PDF]
, 2011 We construct Einstein metrics of non-positive scalar curvature on certain solid torus bundles over a Fano Kahler-Einstein manifold. We show, among other things, that the negative Einstein metrics are conformally compact, and the Ricci-flat metrics have ...
Chen, Dezhong
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Quasi-Einstein metrics on hypersurface families [PDF]
, 2012 We construct quasi-Einstein metrics on some hypersurface families. The hypersurfaces are circle bundles over the product of Fano, K\"ahler-Einstein manifolds.
Hall, Stuart James
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Moving Observers in an Isotropic Universe [PDF]
, 2006 We show how the anisotropy resulting from the motion of an observer in an isotropic universe may be determined by measurements. This provides a means to identify inertial frames, yielding a simple resolution to the twins paradox of relativity theory.
A. Einstein +3 more
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On Einstein clusters as galactic dark matter halos [PDF]
, 2007 We consider global and gravitational lensing properties of the recently suggested Einstein clusters of WIMPs as galactic dark matter halos. Being tangential pressure dominated, Einstein clusters are strongly anisotropic systems which can describe any ...
Boehmer, C. G., Harko, T.
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On homogeneous warped product Einstein metrics [PDF]
, 2014 In this article we study homogeneous warped product Einstein metrics and its connections with homogeneous Ricci solitons. We show that homogeneous $(\lambda,n+m)$-Einstein manifolds (which are the bases of homogeneous warped product Einstein metrics) are
Lafuente, Ramiro A.
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Einstein-Rosen "Bridge" Needs Lightlike Brane Source [PDF]
, 2009 The Einstein-Rosen "bridge" wormhole solution proposed in the classic paper [1] does not satisfy the vacuum Einstein equations at the wormhole throat. We show that the fully consistent formulation of the original Einstein-Rosen "bridge" requires solving ...
Alexander Kaganovich +32 more
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Variability of fundamental constants
, 2002 If the fine structure constant is not really constant, is this due to a variation of $e$, $\hbar$, or $c$? It is argued that the only reasonable conclusion is a variable speed of light.Comment: preliminary draft, comments ...
ASHER PERES +4 more
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Black Holes with Yang-Mills Hair [PDF]
, 1998 In Einstein-Maxwell theory black holes are uniquely determined by their mass, their charge and their angular momentum. This is no longer true in Einstein-Yang-Mills theory. We discuss sequences of neutral and charged SU(N) Einstein-Yang-Mills black holes,
Kleihaus, B. +3 more
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Lorentz group theory and polarization of the light
, 2011 Some facts of the theory of the Lorentz group are specified for looking at the problems of light polarization optics in the frames of vector Stokes-Mueller and spinor Jones formalism.
A. Einstein +2 more
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Boundary conditions for hyperbolic formulations of the Einstein equations [PDF]
, 2003 In regards to the initial-boundary value problem of the Einstein equations, we argue that the projection of the Einstein equations along the normal to the boundary yields necessary and appropriate boundary conditions for a wide class of equivalent ...
Abrahams A M +18 more
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