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gr-qc1997
Relativistic cosmological hydrodynamics
J. Hwang, H. Noh
We investigate the relativistic cosmological hydrodynamic perturbations. We present the general large scale solutions of the perturbation variables valid for the general sign of th…
gr-qc1997
Cosmological structures in generalized gravity
J. Hwang
In a class of generalized gravity theories with general couplings between the scalar field and the scalar curvature in the Lagrangian, we describe the quantum generation and the cl…
gr-qc1996
Density Spectrums from Kinetic Inflations
J. Hwang, H. Noh
The pole-like accelerated expansion stages purely driven by the coupling between the gravity and the dilaton field without referring to the potential term can be realized in a clas…