Novosyadlyj B. Large-scale structure and cosmological model parameters of observational Universe.

The thesis is devoted to the analysis of formation of the large-scale structure of the Universe and determination of parameters of cosmological model on the basis of comparing the set of theoretically calculated characteristics of the large-scale structure with observable ones within wide range of scales and redshifts. The linear and nonlinear stages of evolution of random Gaussian matter density and velocity perturbations were analysed along with space-time metrics perturbations in the framework o f models of multicomponent Universe. The analytical expressions have been obtained to run calculation of characteristics of large-scale structure in the most general 11-parameters model. The evolution of perturbations in ionized fractions of ions and electrons inside the region of cosmological density perturbation of baryons through the epoch of cosmological recombination was investigated. The parameters of LCDM cosmological model were determined and confidence levels established. The upper bound (at 95.4 %C.L.) was determined for the amplitude of power spectrum of relic gravitational waves and the value of mass density of neutrino component of dark matter. The phenomenological description of quasars spatial distribution was built, the dependency of average number density and 2-point spatial correlation function of quasars on redshift in LCDM models.