[PDF] Top 20 2 A Cosmological Model with Varying G and ∧ in General Relativity

... The authors recently considered time dependent G and  with Bianchi type–I Cosmological model .We considered in this paper homogeneous Bianchi type -I space-time with variable G and  co[r] ... See full document

... Initially the model has a point type singularity, gravitational constant G t is decreasing and cosmological constant  is infinite at this time when time increases  decrease.The model a[r] ... See full document

... Einstein’s general relativity equation in Bianchi type-I space time with polytropic bulk viscous ...ρ, cosmological constant Λ, expansion scalar θ , shear scalar σ and coefficient of bulk viscosity η ... See full document

... string cosmological models in different physical and geometrical ...the cosmological scale and is present in galactic and intergalactic ...A cosmological model which contains a global magnetic ... See full document

... bag model of quark matter, in which quark confinement is described by an energy term proportional to the ...this model, quarks are through as degenerate Fermi gas, which exists only in a region of space ... See full document

...  2 , we can see that matter pressure and energy density will ...walls model which represent the self-gravitating or stiff fluid do not survive in the scale covariant theory of gravitation formulated by ... See full document

... type cosmological models are important in the sense that, these are homogeneous and anisotropic, from which the process of isotropization of the universe is studied through the passage of time, Moreover , from the ... See full document

... The energy-density and pressure are positive if c > a. For the physical reality of the model (3.21), we also take a > 0. The energy density, expansion scalar and sher scalar are decreasing function of 𝜏which ... See full document

... fluid cosmological model associated with electromagnetic field has been obtained by Dunn and Tupper ...type cosmological model in Biometric theory of gravitation presented by Reddy and Rao ... See full document

... type cosmological models are important in the sense that these are spatially homogeneous and anisotropic, from which process of isotropization of the universe is studied through the passage of ... See full document

... a model of such a statistical system, we consider here a degenerate Bose-Einstein gas, whose distribution function has the form (we use the system of units where the Boltzmann constant is k B = ... See full document

... the cosmological scale and is present in galactic and inter- galactic ...string cosmological models have been investigated by Yadav et ...mological model in general ... See full document

... The general relativity liquid star model provides the necessary theoretical and mathematical foundation needed to explore the Physics of liquid stars ...star model takes into account the ... See full document

... General relativity predicts a singularity in the beginning of the universe being called big ...the cosmological model agrees with the one of general ... See full document

... The dCS binary inspiral problem in the post-Newtonian regime (v c) was first treated by Yagi et al. [212]. When two spinning BHs with scalar dipole hair are placed in proximity with each other, the hair is responsible ... See full document

... Some authors have produced artificial models, parts of which, transform as a spinor see for example the cube within a cube described by Misner, Thorne and Wheeler[6] or the tethered rocks of Hartung [7]. This paper shows ... See full document

... The Cosmological Relativity of Carmeli [7], the general and special theories, is a five dimensional brane world model based on time t, space x y z , , and velocity ...Special Relativity ... See full document

... Bianchi models have been studied by several authors to achieve a better un- derstanding of the observed small amount of anisotropy in the universe. The simple Bianchi family containing flat FRW universe as a special case ... See full document

... cal tests for nearly a century. Though gravitational waves have not been detected, as of yet (early 2015), they are firmly expected as a further confirma- tion of general relativity. Much time, money and ... See full document

... In this article we have shown that in four dimensions the action integral for GR with a positive cosmological constant Λ can be written in an analogical form to the form of the action integral for the typical ... See full document