Vol. 13 No. 4 (2021)

Published: 2021-11-19

Full Issue

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Mathematics

On a q-Boundary Value Problem with Discontinuity Conditions

Döne Karahan, Khanlar Rashid Mamedov

5-12
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Existence and Uniqueness Conditions for Solutions of Linear Functional Equations in the Classes of Lebesgue Functions Antiderivatives on a Simple Smooth Curve

Valeriy Leyzerovich Dilman, Dar'ya Amirovna Komissarova

13-23
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Making Investment Decisions in an Industrial Enterprise under Uncertainty

Veniamin Gennad'evich Mokhov, Galina Sergeevna Chebotareva

24-28
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Algorithms and Information Processing in Numerical Research of the Barenblatt–Zheltov–Kochina Stochastic Model

Ekaterina Aleksandrovna Soldatova, Alevtina Viktorovna Keller

29-36
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Mechanics

Investigation of the Possibilities of Increasing the Projectile Velocity under the Conditions of Electrothermal-Chemical Ignition Technology as Applied to a Medium-Caliber Installation

Viktor Vladimirovich Burkin, Aleksey Sergeevich D'yachkovskiy, Aleksandr Nikolaevich Ishchenko, Vladimir Zinatovich Kasimov, Nina Mikhaylovna Samorokova, Aleksey Dmitrievich Sidorov, Evgeniy Yur'evich Stepanov

37-43
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Wave Equation with Cubic Nonlinearity and Excitation of Oscillations in the “Medium–Source” System

Oleg Nikiforovich Shablovskii

44-56
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Physics

Ab initio Modeling of Interactions of P, H, C, S with Grain Boundaries in α-Iron

Anastasiia Vladimirovna Verkhovykh, Alexander Aminulaevich Mirzoev, Natalia Sergeevna Dyuryagina

57-68
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Diffusion Transfer in a Spherical Granule with Ideal Contact of Two Consecutive Multi-Permeable Axisymmetric Areas under Boundary Conditions of the First Kind

Dmitriy Al'bertovich Konovalov, Aleksandr Viktorovich Ryazhskikh, Anatoliy Anatol'evich Khvostov, Elena Aleksandrovna Soboleva

69-76
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Short communications

The Minimal Vertex Extensions for Colored Complete Graphs

Pyetr Vladimirovich Razumovskiy, Mikhail Borisovich Abrosimov

77-89
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Information

Evgeniy Anatol'evich Belenkov (21.01.1964 – 28.10.2021)

Sophiya Aleksandrovna Zagrebina

90
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Nataliya Borisovna Medvedeva (24.10.1960 – 2.08.2021)

Vladimir Il'ich Zalyapin

91
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