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Browsing Department of Physics by Issue Date
Now showing items 1-20 of 255
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(Physical Review Letters, American Physical Society (APS), 1977)We formulate the problem of colliding plane gravitational waves with two polarizations as the harmonic mappings of Riemannian manifolds and construct an exact solution of the vacuum Einstein field equations describing ...
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(1978)Using the analogy between the SL(2,C) gauge theory of gravitation and the Yang-Mills theory, we propose a model for massive vector bosons. The model is based on the Geroch-Held-Penrose treatment of gravitation in which ...
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(Physics Letters, Elsevier, 1978)We present pp-wave solutions to the generalized Einstein—Maxwell field theory introduced by Horndeski and to Mansouri- Chang theory of gravitation.
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(Physical Review D, American Physical Society (APS), 1979)New exact solutions of the vacuum Einstein field equations are constructed which describe the collision of plane gravitational waves. These solutions generalize those of Szekeres by relaxing the requirement of collinear ...
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(International Journal of Theoretical Physics, Springer, 1981)We solve the geodesics equation for a charged particle in Bell-Szekeres spacetime. In the same geometry we give the test particle solution of Dirac's equation.
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(Physics Letters A, Elsevier, 1981)We present another method of generating new solutions from old ones in general relativity. In particular we apply the method to some well-known classes of gravitational fields.
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(Physics Letters, 1981)It is shown that a theorem proved on colliding plane gravitational waves is not correct.
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(Lettere Al Nuovo Cimento, Italian Physical Society, 1982)We present a solution of the Einstein-Maxwell field equations describing the collision of superposed electromagnetic shock plane waves
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(General Relativity and Gravitation, Springer, 1983)We make an alternative approach to Bonnorification by making use of effective Lagrangians for the gravitational fields. Using this technique we obtain a new Einstein-Maxwell solution
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(Lettere Al Nuovo Cimento, Italian Physical Society, 1983)Exact similarity solution is given for the Ernst equation coupled with electromagnetic fields in general relativity.
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(Lettere Al Nuovo Cimento, Societa Italiana di Fisica, 1985)A more general class of scalar plane waves is presented in general relativity. It is shown that no matter how the scalar field is modified, space-time possesses an essential singularity.
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(Lettere Al Nuovo Cimento, Societa Italiana di Fisica, 1985)We present a method that generates a class of transcendent solutions to Ernst system in Einstein-Maxwell theory of general relativity.
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(Physical Review D, American Physical Society (APS), 1986)we present new solutions to Yang's self-dual SU(2) equations. These solutions have the property that they are self-similar, together with some of their elliptical and transcendental extensions.
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(Europhysics Letters EPL, Institute of Physics (IOP) Publishing, 1986)The role of the Bavinonic condition in a previously obtained solution of the Ernst equation is clarified.
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(The Chemical Engineering Journal, 1987)We present a more general solution of the standard deep bed filtration equations which explains the initial improvement of effluent quality as a suspension passes through a porous medium. Our solution gives a good ...
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(Nuovo Cimento B, Societa Italiana di Fisica, 1987)We study the interacting electromagnetic shock waves with nonconstant profiles in general relativity. It is shown that by modifying the metric functions of the Bell-Szekeres solution, such solutions can be obtained.
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(Nuovo Cimento B, Springer, 1988)Using Einstein-Rosen's linearly polarized waves as the seed solution, we derive an interesting solution for the Einstein's equations that describes the evolution of such waves with the second polarization.
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(Physical Review D, American Physical Society (APS), 1988)We present a new family of exact solutions for the Einstein equations that describes colliding gravitational shock waves with cross polarization. In the limit of single polarization it reduces to a family that, up to a ...
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(Physical Review D, Amrican Physical Society (APS), 1988)we derive a new, exact solution for the Einstein-Maxwell equations that describes the collision (interaction) of two arbitrarily polarized electromagnetic shock waves. In the limit that the polarization angle vanishes, ...
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(Journal of Mathematical Physics, American Institute of Physics (AIP), 1988)Some properties of the space-times admitting two spacelike Killing vectors are studied. In particular, using harmonic maps the degree of freedom on the M' manifold is exploited to add scalar and electromagnetic fields ...
Now showing items 1-20 of 255
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