Abstract:
In order to solve some current problems of cosmology, the theory of relativity is extended by asymmetric time, whose flow velocity is variable. Asymmetric time is based on Einstein's recommendation: the principle of the constancy of the speed of vacuum light can be used to complete the definition of time. It is a logical consequence of the earlier standard model of cosmology, the Einstein-de Sitter universe. The following explanations show how this is done.