CONTENTS

MATHEMATICS

Azarov D. N. Residual properties of abelian groups

Zyuz’kov V. M. Sufficient conditions for the existence of undecidable indirectly reflective sentences

Rakhmelevich I.V. Оn some new solutions of the multi-dimensional first order partial differential equation with power-law non-linearities

Tursunov D.A., Erkebaev U.Z. Аsymptotic expansion of the solution of a perturbed elliptic equation when the limit equation has singular points

MECHANICS 

Barsukov V.D., Goldaev S.V., Minkova N.P, Babushkin N.A.  Ьetal shield influence on underwater ignition of a dibasic solid propellant with a spiral heated by a capacitor

Burkin V. V., Diachkovsky A. S., Ishchenko A.N., Kasimov V. Z., Rogaev K.S. Investigation of gas-dynamic features of a moving model with a pulse jet engine (CPJE) inside a barrel

Gamzaev Kh.M. On numerical simulation of the fluid flow in a dual-completion water-bearing system

Darya zadeh S., Lvov G. I. The calculation of effective elastic constants in a composite with 3D orthogonal nonwoven fibers

Popov I.P. The group velocity of a wave packet formed by two free identical particles with different non-relativistic velocities.

Shagapov V. Sh., Chiglintseva A.S., Rusinov A.A. On mechanisms of the hydrate shell growth on the surface of supernatant gas bubbles.

Yakovlev I. A., Skripnyak V.A. Mathematical modeling of complex technical objects with nonlinear properties illustrated by the investigation of porous media reactor reliability