Application of General Relativity to Time-Frequency;

On Brown-York and Quadratic Spinor actions of general relativity;

The Inevitability of Combining General Relativity and Differential Geometry;

The nonlinearity of Einstein′s field equation brings a lot of difficulties to solving of general relativity theory in case of weak field.

He is engaged with a series of creating research works about the general relativity theory applying to astrophysics, and achievies glorious successes.

quantizing the general relativity theory in the sense of Einstem-C.

Eddington and the verification of general theory of relativity;

Based on the postulates of vacuum fluctuation,a model of gravitational space is proposed,and the inverse-square law of gravity is deduced,the mechanism of gravitational red shift is interpreted with the same result given by Einstein s general theory of relativity.

Itdiscusses Newton s mass concept,the formation of these two kinds of mass concept, the test ofequivalence experiment, the principle of equivalence brought forth by Einstein and the identicalreflection of the nature of these two kinds of mass in the general theory of relativity.