[Guo HanYing] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
; [Huang ChaoGuang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
; [Huang ChaoGuang] Chinese Acad Sci, Ctr Theoret Phys, Sci Facil, Beijing 100049, Peoples R China
; [Wu HongTu] Capital Normal Univ, Dept Math, Beijing 100048, Peoples R China
; [Zhou Bin] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
Based on the relativistic principle and the postulate of universal invariant constants (c, l), all kinematic symmetries can be set up as the subsets of the Umov-Weyl-Fock-Hua transformations for the inertial motions. These symmetries are connected to each other via combinations rather than via contractions and deformations.