منابع مشابه
A teleparallel effective geometry for Einstein’s unified field theory
Riemannian and teleparallel geometrical approaches to the investigation of Maxwell electrodynamics shown that a unified field theory of gravitation and electromagnetism a la Einstein can be obtained from a stationary metric. This idea contrasts with the recently proposed premetric electrodynamics by Hehl and Obukhov. In the teleparallel case the definition of the electric field is obtained stra...
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In this paper, the basic constitutive equations and equations of motion are derived to describe the behavior of thermoelastic porous piezoelectric medium by using Biot’s theory and the theory of generalized thermoelasticity with on relaxation time (Lord-Shulman). The electrical enthalpy density function is derived in the general coordinates. Also, clear definitions for the poroelastic modulus, ...
متن کاملConservation laws in the teleparallel theory of gravity
We study the conservation laws associated with the asymptotic Poincaré symmetry of spacetime in the general teleparallel theory of gravity. Demanding that the canonical Poincaré generators have well defined functional derivatives in a properly defined phase space, we obtain the improved form of the generators, containing certain surface terms. These terms are shown to represent the values of th...
متن کاملGeneral Self-dual Lorentzian Wormholes in Teleparallel Theory of Gravity
We find the most general Self-dual Lorentzian Wormholes in a special class of teleparallel theory of gravitation. The spacetime of these wormholes is a static and it includes the Schwarzschild black hole, a family of naked singularity and a disjoint family of Lorentzian wormholes all of which have a vanishing scalar curvature R({}). The stability is studied using the equations of geodesic devia...
متن کاملAxially Symmetric Solution in Teleparallel Theory of Gravitation
An exact solution has an axial symmetry is obtained in the teleparallel theory of grav-itation. The associated metric has the structure function G(ξ) = 1 − ξ 2 − 2mAξ 3. The cubic nature of the structure function can make calculations cumbersome. Using a coordinate transformation we get a tetrad that its associated metric has the structure function in a factorisable form. This new form has the ...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2016
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-016-4220-8