Affiliation: | 1.Faculty of Mechanics and Mathematics, Lomonosov Moscow State University, 119991, Moscow, Russia ;2.Moscow Polytechnic University, 127550, Moscow, Russia ;3.Institute of Mathematics with Computing Center, Subdivision of the Ufa Federal Research Center, Russian Academy of Science, 450000, Ufa, Bashkortostan, Russia ;4.Institute of Mathematics and Mathematical Modeling, 050010, Almaty, Kazakhstan ; |