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Graphic solution of R-W metric for the case of positive curvature and cosmic entire space and time
R-W metric hypersphere cosmology large scale structure of the universe space and time absolutism relativism
2011/9/26
The vivid image of R-W metric for the case of hypersphere is given; The hypersphere is proposed as the only model for the physical universe; The cosmic radius R(t) may be defined as a cosmic broad tim...
A modified star formation law as a solution to open problems in galaxy evolution
galaxies: evolution – galaxies: formation – galaxies: stellar content –galaxies: haloes
2011/10/13
In order to reproduce the low mass end of the stellar mass function, most current models of galaxy evolution invoke very efficient supernova feedback. This solution seems to suffer from several shortc...
Domain wall solution in $F(R)$ gravity and variation of the fine structure constant
solution gravity variation fine structure
2011/10/18
We construct a domain wall solution in $F(R)$ gravity. We first compare a scalar field theory having a runaway type potential with a corresponding scalar field theory obtained through a conformal tran...
Modification of Field Equation and Natural Solution to cosmological problems
Background Coordinates Standard coordinates
2015/5/29
The present article has systematically solved the problem of galaxy formation and some significant cosmological puzzles. First a mistake with Einstein’s equation of gravitational field is corrected, n...
SPIRAL SOLITON SOLUTION FOR DISK GALAXIES
Galaxies spiral – Galaxies kinematics and dynamics–Methods analytical
2009/3/11
In this paper, weakly nonlinear dynamics of spiral galaxies is studied,
using reductive perturbation method. One primarely aims at the derivation
of possible soliton solution for two dimensional geo...