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نمایش تعداد 1-10 از 425
Stability of vacua in new massive gravity in different gauges
We consider AdS3 and warped AdS3 vacua in new massive gravity and study
the highest weight modes and general propagating modes as a set of solutions for the linearized
equations of motion. We observed that depending on the choice...
Toroidal Solutions in Horava Gravity
Recently a new four-dimensional nonrelativistic renormalizable theory of gravity was
proposed by Hoˇrava. This gravity reduces to Einstein gravity at large distances. In this
paper we present different toroidal solutions...
GRAVITY ON NONCOMMUTATIVE D-BRANES
The effective action for the low energy scattering of two gravitons with a D-brane in the presence of a constant antisytmetric $B$ field in bosonic string theory is calculated and the modification to the standard D-brane ...
Band limited topographic mass distribution generates full spectrum gravity field: Gravity forward modeling in the spectral and spatial domains revisited
Energy-momentum squared gravity
A new covariant generalization of Einstein’s general relativity is developed which allows the existence of a term proportional to TαβTαβ in the action functional of the theory (Tαβ is the energy-momentum tensor). Consequently, ...
More on five dimensional EVH black rings
In this paper we continue our analysis of arXiv:1308.1478 and study in detail the parameter space of three families of doubly spinning black ring solutions: balanced black ring, unbalanced ring and dipole-charged balanced ...
Vertically self-gravitating ADAFs in the presence of toroidal magnetic field
Force due to the self-gravity of the disc in the vertical direction is considered to study its possible effects
on the structure of a magnetized advection-dominated accretion disc. We present steady-sate self similar solutions...
On the cosmology of scalar-tensor-vector gravity theory
We consider the cosmological consequences of a special scalar-tensor-vector theory of gravity, known as MOG (for MOdified Gravity), proposed to address the dark matter problem. This theory introduces two scalar fields G(x) and μ(x), and one vector...