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Equation of state and singularities in FLRW cosmological models
FLRW cosmological models Friedmann equations
2010/3/18
We consider FLRW cosmological models with standard Friedmann equations, but leaving free the equation of state. We assume that the dark energy content of the universe is encoded in an equation of stat...
Some String Cosmological Models in Cylindrically Symmetric Inhomogeneous Universe
String Cosmological Models
2010/4/15
The aim of this paper is to investigate the behavior of a string in the cylindrically symmetric inhomogeneous cosmological model. It has been assumed that expansion q in the model is proportional to s...