FLRWModell
The FLRW model, named after its developers Alexander Friedmann, Georges Lemaître, Howard P. Robertson, and Arthur Geoffrey Walker, is a mathematical model used in physical cosmology to describe the evolution of the universe. It is based on Einstein's field equations of general relativity and assumes a homogeneous and isotropic universe. The model is characterized by two main parameters: the scale factor, which describes the expansion or contraction of the universe, and the cosmological constant, which represents the energy density of empty space.
The FLRW model predicts that the universe can expand or contract, depending on the value of the
The FLRW model has been successful in explaining many observed features of the universe, such as the