| Contents | |
| Message from the Editorial Board | 7 |
| MATHEMATICS | |
| Attaev A. Kh. The Cauchay problem for a loaded partial differential equation of the first order | 9 |
| Makaova R. Kh. On a mixed problem for a third order degenerating hyperbolic equation | 19 |
| Nakhusheva F. M., Kerefov M. B., Gekkieva S. Kh., Karmokov M. M. On a class of non-local boundary value problems for the heat equation | 30 |
| \fbox{\textbf{Fedorov B. P.}} , Bogdanova S. B., Gladkov S. O. Some miniatures with a cube | 39 |
| Eneeva L. M. Nonlocal boundary value problem for an equation with fractional derivatives with different origins | 58 |
| MATHEMATICAL MODELING | |
| Parovik R. I. Implementation of the modified Test 0-1 algorithm for the analysis of chaotic modes of the fractional Duffing oscillator | 67 |
| Tverdyi D. A., Makarov E. O., Parovik R. I. Research of stress-strain state of geo-environment by emanation methods, on the example of \alpha\left(t\right) -model of radon transport | 86 |
| Tverdyi D. A., Malkin E. I. Computer simulation of the propagation of a plane electromagnetic wave in a waveguide formed by the Earth’s surface and the ionosphere under the condition of inhomogeneous boundary conductivity | 104 |
| Esonturdiyev M. N. Algorithms for clarification of the operating modes of channel sections in the management of water resources in channel irrigation systems | 121 |
| PHYSICS | |
| Gladkov S. O. To the question of an analytical estimate some internal sizes of the Earth | 130 |
| Shcherbina A. O., Solodchuk A. A. Localization of acoustic emission sources according to the data of a distributed system of combined receivers | 144 |
| INSTRUMENTS AND METHODS OF MEASUREMENT | |
| Glukhov V. E., Makarov E. O., Boldina S. V. Hardware and software complex of the tilt-measuring observations network of deformation processes on the Kamchatka peninsula | 157 |
| Pavlova V. Yu., Vodinchar G. M., Nekrasova M. Yu. Some methods of additional processing of GPR data on the example of radargrams obtained in the crater of the Gorely volcano (Kamchatka) | 173 |
| Cherneva N. V., Malkin E. I. Letter to editor | 195 |
| 65 years of Professor O. S. Zikirov | 197 |
| 60 years of Professor S. Z. Dzhamalov | 199 |
