Summary: In article it is shown that fireballs have the electromagnetic nature and are caused by wave space resonances.
Keywords: kosmo-terrestrial communications; space resonant meta-cycles.
Summary: Heterostructure p-GaTe–n-InSe was prepared by the method of mechanical contact of GaTe oxidized plate with van der Waals surface of InSe. Topology of surfaces of GaTe and InSe layered crystals were studied by using AFM-images. It is shown that there was formed thin oxide dielectric layer of Ga2O3 on the heterojunction p-GaTe–n-InSe.The direct branch ofthe current-voltage characteristics of the heterostructure show high diode properties. Sensitivity spectral area of p‑GaTe – n-InSe heterostructure was identified and the characteristics of its energy band diagram were shown.
Key words: indium selenide, layered crystals, heterojunction, AFM-images spectral characteristics.
Summary: There is investigated periodical boundary value problem for the system of partial differential equation. Obtain the sufficient conditions of existence and uniqueness of the multiperiodical solution considered the problem.
Keywords: boundary value problem, solvability, multiperiodical, Friedrichs, hyperbolic system of the equations.
Summary: This article discusses the use of MathCAD software to solve differential equations of the first order.
Key words: mathematics еeditor, differential equations, Lagrange method.
