Results 31 to 40 of about 77,425 (318)

Exact solutions and their interpretation [PDF]

open access: yes, 2002
This is the account of the workshop Exact solutions and their interpretation at the 16-th International Conference on General Relativity and Gravitation held in Durban, July 15-21, 2001.
Bicak, Jiri
core   +2 more sources

Axially Symmetric Solutions for SU(2) Yang-Mills Theory [PDF]

open access: yes, 1995
By casting the Yang-Mills-Higgs equations of an SU(2) theory in the form of the Ernst equations of general relativity, it is shown how the known exact solutions of general relativity can be used to give similiar solutions for Yang-Mills theory.
Bogomolny E. B., D. Singleton
core   +2 more sources

Exact Self-consistent Particle-like Solutions to the Equations of Nonlinear Scalar Electrodynamics in General Relativity [PDF]

open access: green, 1996
Exact self-consistent particle-like solutions with spherical and/or cylindrical symmetry to the equations governing the interacting system of scalar, electromagnetic and gravitational fields have been obtained.
Yu. P. Rybakov   +2 more
openalex   +4 more sources

Perfect fluid cosmologies with varying light speed [PDF]

open access: yes, 2000
We have found exact constant solutions for the cosmological density parameter using a generalization of general relativity that incorporates a cosmic time-variation of the velocity of light in vacuum and the Newtonian gravitation constant.
Chimento, Luis P., Jakubi, Alejandro S.
core   +2 more sources

Generic Off--Diagonal Solutions and Solitonic Hierarchies in Einstein and Modified Gravity [PDF]

open access: yes, 2015
We summarize some our recent results on encoding exact solutions of field equations in Einstein and modified gravity theories into solitonic hierarchies derived for nonholonomic curve flows with associated bi-Hamilton structure.
Vacaru, Sergiu I.
core   +1 more source

Using Algebraic Computing To Teach General Relativity And Cosmology

open access: yesAnnals of West University of Timisoara: Physics, 2012
The article presents some new aspects and experience on the use of computer in teaching general relativity and cosmology for undergraduate students (and not only) with some experience in computer manipulation. Some years ago certain results were reported
Vulcanov Dumitru N.   +1 more
doaj   +1 more source

MULTIDIMENSIONAL SOLITONS WITH SPHERICAL COMPACTIFICATION

open access: yesOdessa Astronomical Publications, 2012
Multidimensional static spherically symmetric (with respect to the external 3-dimensional space) vacuum solutions of the Einstein equation were well-known and prevalent in literature for a long time. These solutions are called solitons. Among them, there
A. V. Chopovsky   +2 more
doaj   +1 more source

New static cylindrical symmetric solutions in GR for unfamiliar EoS parameter values via Noether symmetry

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The solutions for the field equations of f(R) gravity are investigated in static cylindrically symmetric space-time. Conserved quantities of the system, as well as unknown functions, can be determined with the help of the Noether symmetry method. In this
Işıl Başaran Öz, Kazuharu Bamba
doaj   +1 more source

Conformal Mappings in Relativistic Astrophysics

open access: yesJournal of Applied Mathematics, 2013
We describe the use of conformal mappings as a mathematical mechanism to obtain exact solutions of the Einstein field equations in general relativity. The behaviour of the spacetime geometry quantities is given under a conformal transformation, and the ...
S. Hansraj, K. S. Govinder, N. Mewalal
doaj   +1 more source

Exact Solutions in Modified Massive Gravity and Off-Diagonal Wormhole Deformations [PDF]

open access: yes, 2014
There are explored off-diagonal deformations of "prime" metrics in Einstein gravity (for instance, for wormhole configurations) into "target" exact solutions in f(R,T)-modified and massive/ bi-metric gravity theories.
Vacaru, Sergiu I.
core   +2 more sources

Home - About - Disclaimer - Privacy