Abstract
It postulates a FRW cosmological model with Λ ≡ Λ (r) as an alternative to the non-baryonic dark matter. This potential is build starting from a speculate reflection to Yukawa potential: zero in the inner solar system, slightly attractiveness in interstellar distances, very attractiveness in galactic distance ranges and repulsive to cosmic scales. This model is compatible with the density critical observed, and Milgrom theory
