In this paper, we will discuss the geometries of the Dirac-Lu space whose boundary is the third conformal space Af defined by Dirac and Lu. We firstly give the S0(3, 3) invariant pseudo- Riemannian metric with const...
NSFC (90503002, 10775140);Knowledge Innovation Funds of CAS (KJCX3-SYW-S03)
A new gravitational model for dark energy is presented based on the model of de Sitter gauge theory of gravity. In the model, in addition to the cosmological constant, the homogeneous and isotropic torsion and its cou...
This work was partially supported by the National Natural Science Foundation of China(Grant No.90503002)
Like Euclid, Riemann and Lobachevski geometries are on an almost equal footing, based on the principle of relativity of maximum symmetry proposed by Professor Lu Qikeng and the postulate on invariant universal constan...
Acknowledgements This work was partly supported by the National Key Basic Research Program of China(Grant No.2004CB318000);the National Natural Science Foundation of China(Grant No.10375087,10375038,90403018,90503002).
In a way similar to the continuous case formally, we define in different but equivalent manners the difference discrete connection and curvature on discrete vector bundle over the regular lattice as base space. We dea...