scattering - 2 рассеяние 2 розсіяння 2 Fourier transform 1 Lobachevskii space 1 R-matrix with B-splines method 1 Schr¨odinger equation 1 T-matrix 1 absorption 1 acoustic wave 1 amplitude of scattering 1 analytical representation 1 auroral oval 1 calcium atom 1 convergence 1 coordinates 1 diffraction 1 direction finding 1 dispersion equation 1 electron 1 excitation 1 fine fiber 1 finite differences 1 horosphere 1 ionization 1 ionospheric plasma 1 iterations 1 iонiзацiя 1 method 1