Results 31 to 40 of about 141,581 (359)

Nonanalytic Relativistic r-Modes of Slowly Rotating Nonbarotropic Neutron Stars

open access: yesUniverse, 2022
We show that the r-modes of slowly rotating nonbarotropic neutron stars are described by nonanalytic functions of stellar angular velocity, which makes the perturbation techniques, used so far in the r-mode theoretical studies, inapplicable.
Kirill Y. Kraav   +2 more
doaj   +1 more source

Self-force and radiation reaction in general relativity [PDF]

open access: yesReports on progress in physics. Physical Society, 2018
The detection of gravitational waves from binary black-hole mergers by the LIGO–Virgo Collaboration marks the dawn of an era when general-relativistic dynamics in its most extreme manifestation is directly accessible to observation.
L. Barack, A. Pound
semanticscholar   +1 more source

Coincident general relativity [PDF]

open access: yesPhysical Review D, 2017
The Palatini's device is applied to generate teleparallel and symmetric teleparallel theories of gravity. From the latter is discovered an exceptional class which is consistent with a vanishing affine connection.
J. B. Jiménez   +2 more
semanticscholar   +1 more source

From Black Holes Entropy to Consciousness: The Dimensions of the Brain Connectome

open access: yesEntropy, 2023
It has been shown that the theory of relativity can be applied physically to the functioning brain, so that the brain connectome should be considered as a four-dimensional spacetime entity curved by brain activity, just as gravity curves the four ...
Denis Le Bihan
doaj   +1 more source

Tests of General Relativity with GW170817. [PDF]

open access: yesPhysical Review Letters, 2018
The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal from a binary neutron star inspiral has enabled tests of general relativity (GR) with this new type of source.
B. Abbott   +499 more
semanticscholar   +1 more source

RELATIVE TORSION [PDF]

open access: yesCommunications in Contemporary Mathematics, 2001
This paper achieves, among other things, the following: • It frees the main result of [9] from the hypothesis of determinant class and extends this result from unitary to arbitrary representations. • It extends (and at the same times provides a new proof of) the main result of Bismut and Zhang [3] from finite dimensional representations of Γ to ...
Burghelea, D   +2 more
openaire   +3 more sources

The Confrontation between General Relativity and Experiment [PDF]

open access: yesLiving Reviews in Relativity, 1980
The status of experimental tests of general relativity and of theoretical frameworks for analyzing them is reviewed and updated. Einstein’s equivalence principle (EEP) is well supported by experiments such as the Eötvös experiment, tests of local Lorentz
C. Will
semanticscholar   +1 more source

Conformal Relativity [PDF]

open access: yesIndagationes Mathematicae (Proceedings), 1951
If one keeps angle but drops an invariant (four-dimensional) length from an essentially Einstenian description of the world, one gets Conformal Relativity. (The invariance of angle is all that is required by the «invariance of the light cone» for physically equivalent observers). The Special Theory of Conformal Relativity studies the conformal geometry,
openaire   +4 more sources

Einstein Geometrization Philosophy and Differential Identities in PAP-Geometry

open access: yesAdvances in Mathematical Physics, 2016
The importance of Einstein’s geometrization philosophy, as an alternative to the least action principle, in constructing general relativity (GR), is illuminated. The role of differential identities in this philosophy is clarified.
M. I. Wanas   +3 more
doaj   +1 more source

General Relativity from Scattering Amplitudes. [PDF]

open access: yesPhysical Review Letters, 2018
Weoutline the program to apply modern quantum field theory methods to calculate observables in classical general relativity through a truncation to classical terms of the multigraviton, two-body, on-shell scattering amplitudes between massive fields ...
N. Bjerrum-Bohr   +5 more
semanticscholar   +1 more source

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