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Stability of cosmological solutions in F(R) Horava-Lifshitz gravity
cosmological solutions F(R) Horava-Lifshitz gravity
2010/12/23
At the present paper, it is studied cosmological solutions and its stability in the frame of F(R) Horava-Lifshitz gravity. The perturbations around general spatially flat FRW solutions are analyzed a...
Cosmological Solutions in Five Dimensional Minimal Supergravity
Cosmological Solutions Supergravity
2010/12/23
We construct new non-stationary cosmological solutions to five-dimensional minimal supergravity that don't have any tri-holomorphic U(1) isometries. Our new solutions, in part, contain some of the pre...
Cosmological Solutions in Five Dimensional Minimal Supergravity
Cosmological Solutions Five Dimensional Minimal Supergravity
2010/12/21
We construct new non-stationary cosmological solutions to five-dimensional mini-mal supergravity that don’t have any tri-holomorphic U(1) isometries. Our new so-lutions, in part, contain some of the p...
Cosmological Solutions on Atiyah-Hitchin Space in Five Dimensional Einstein-Maxwell-Chern-Simons Theory
Cosmological Solutions Atiyah-Hitchin Space Five Dimensional Einstein-Maxwell-Chern-Simons Theory
2010/3/22
We construct non-stationary exact solutions to five dimensional Einstein-Maxwell-Chern-Simons theory with positive cosmological constant. The solutions are based on four-dimensional Atiyah-Hitchin spa...
f(R) cosmological solutions with varying speed of light
f(R) cosmological varying speed of light
2010/3/18
We consider f(R) modified gravity theories for describing varying speed of light in a spatially flat FRW model, and find some exact solutions. Also we examine the dynamics of this model by dynamical s...