Maxim Eingorn

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The mechanical approach to cosmological problems inside the cell of
uniformity represents a very promising scientific research direction in
modern cosmology. It may be also associated with discrete cosmology in the
nonrelativistic limit. In its framework the observable inhomogeneous
Universe is described in the first order approximation with respect to its
deviation from the averaged homogeneous FLRW one, the gravitational
potentials of separate inhomogeneities (galaxies) are found and their
relative motion (particularly, the motion of the Milky Way and Andromeda as
well as the dwarf galaxies around our Local Group) is investigated in
detail. It turns out that the characteristic features of scalar
perturbations (including, for example, singularities in the places of
gravitating masses locations and beyond them) are sensitive to spatial
topology and composition of the Universe. Thus, the discrete cosmology
screens powerfully different cosmological models and sheds light on the
spacetime structure and its filling.

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North Carolina Central University, CREST and NASA Research Centers
Seminarraum Theoretische Physik
Contact: not specified