Universe dynamic equation of higher-derivation theory
Xin Liu · Journal of Hubei University · 2003
The evolvement of cosmology is studied in the framework of higher-derivative theory of gravitation. The dynamic equation of universe is derived from the higher-derivative field equation of gravitation in the case of homogeneous universe. The dynamic equation is a nonlinearized three-order differential equation with respective to time, and the relation between density of energy and scalar factor is gotten from the conservation law of energy-momentum tensor and the equation of state. At last compare the higher-derivative dynamic equation with the standard dynamic equation.