Osipenko Michael A. RussiaPerm Perm State National Research Polytechnical University, Russia, 614990, Perm, Komsomolskii av., 29 oma@theormech.pstu.ac.ru Author's articles The heat conductivity in the infinite solid of the convection in a cylindrical cavity Determination of the Wall Temperature Change for a Cavity in a Solid as a Result of the Temperature Change of the Gas Flow in a Cavity A Certain Approach to Solving of Some One-Dimensional Contact Problems A Couple Contact Loading at the Unilateral Contact of Beams