Based on the relativistic mean field model of nuclear matter with scaler an
d vector components, a convolution model of deeply inelastic electron-nucle
us scattering has been developed. The influence of the scalar potential cha
nges the nucleon structure function inside the nucleus and ensures agreemen
t with the experiment in the Bjorken x > 0.2. The Sum Rules are discussed.
The role of the relativistic scalar and vector nuclear potential in the nuc
leus is shown.