We have pointed out that on the principles of special relativity and of propagation of light going along the null geodesic the special relativity of Einstein can be extented to the 3-dimensional Beltrami space-time D_...We have pointed out that on the principles of special relativity and of propagation of light going along the null geodesic the special relativity of Einstein can be extented to the 3-dimensional Beltrami space-time D_λ with constant curvaturesλ<0, λ= 0 and λ>0. The inertial coordinate systems for each of them are so-called Beltrami coordinates and their metrics are also Beltrami展开更多
文摘We have pointed out that on the principles of special relativity and of propagation of light going along the null geodesic the special relativity of Einstein can be extented to the 3-dimensional Beltrami space-time D_λ with constant curvaturesλ<0, λ= 0 and λ>0. The inertial coordinate systems for each of them are so-called Beltrami coordinates and their metrics are also Beltrami
