  It is shown that the equations of gravitational waves and cosmological
acceleration follow from the tensor of inertial forces. The possibility of the
existence of three types of gravitational waves: transverse, potential and
vortex waves are shown. The equation of "free cosmological fall" of matter is
obtained. It is concluded that the cosmological acceleration is an attribute of
the geometry of space-time and for its explanation does not require the
involvement of the hypothesis of "dark" energy.
