Fadeev Roman Nikolaevich Russia Saratov State University 1, Saratov State University, Russia, 410012, Saratov, Astrahanskaya st., 83 belal_templier@mail.ru Author's articles Necessary and sufficient conditions of belonging to the Besov–Potapov classes and Fourier coefficients with respect to multiplicative systems Weighted Integrability of Sums of Series with Respect to Multiplicative Systems Uniform Convergence of the Series with Respect to Multiplicative Systems
