摘要
The second Poincar kinematical group serves as one of new ones in addition to the known possible kinematics.The geometries with the second Poincar'e symmetry is presented and their properties are analyzed.On the geometries,the new mechanics based on the principle of relativity with two universal constants(c,l) can be established.
The second Poincard kinematical group serves as one of new ones in addition to the known possible kinematics. The geometries with the second Poincard symmetry is presented and their properties are analyzed. On the geometries, the new mechanics based on the principle of relativity with two universal constants （c, l） can be established.
基金
Supported by the National Natural Science Foundation of China under Grant Nos. 10775140,10705048,10731080,10975141,11175245,11075206
the President Fund of GUCAS
the Fundamental Research Funds for the Central Universities under Grant No. 105116
