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Эффективность применения грассмановской диаграммообразующей схемы в MIMO системах связи
Труды Научной конференции по радиофизике, ННГУ, 2004 . 2004. С. 169–171.
Тираспольский С.А., Червяков А. В.
Language:
Russian
Попеленский Ф. Ю., Математический сборник 2026 Т. 217 № 2 С. 108–153
In a recent paper Buchstaber and the author introduced a new structure on the cohomology of Hopf algebras in terms of the Buchstaber spectral sequence (Bss). We fully calculate this structure on the cohomology (known for a long time) of the important Hopf subalgebra A(1) of the classical Steenrod algebra A2.
As part of a demonstration ...
Added: July 28, 2026
Metlov K., Bogatyrev Andrei B, Annalen der Physik 2026 Vol. 538 No. 6 Article 70234
Thanks to the recent progress in bulk full three-dimensional nanoscale magnetization distribution imaging, there is a growing
interest to three-dimensional (3D) magnetization textures, promising new high information density spintronic applications.
Compared to 1D domain walls or 2D magnetic vortices/skyrmions, they are a much harder challenge to represent, analyze and
reason about. Here we build analytical representation for such ...
Added: July 28, 2026
Думкин Н. А., Alexandrov D., Прозорский М. А., Труды Института системного программирования РАН 2026 Т. 38 № 1 С. 255–274
A theoretically sound approach to adaptive client-side video fragment restoration is proposed using
machine learning and scene analysis methods. The method includes a formal problem statement, a finite-state
machine model for decision making, a restoration cost function, and a new stage in video preparation: scene
dynamics assessment followed by recording a feature in an HLS playlist. This feature ...
Added: July 27, 2026
Menovshchikov A., Ukhlov A., Rendiconti del Circolo Matematico di Palermo 2026 Vol. 75 Article 91
We consider the nonlinear Neumann eigenvalue problem in outward cuspidal domains with a weighted measure. Using composition operators on Sobolev spaces, we establish embeddings of Sobolev spaces into weighted Lebesgue spaces. These embeddings give the solvability of the Neumann spectral problem in this setting and provide estimates for the corresponding weighted Neumann eigenvalues. ...
Added: July 27, 2026
Menovshchikov A., Journal of Mathematical Sciences 2026 Vol. 298 P. 608–618
We study the set of (p, q)-eigenvalues of the p-Laplace operator with no-flux boundary conditions. We show that this set is closed and that its smallest positive element (the first nontrivial eigenvalue) admits a variational characterization. Moreover, we establish lower bounds for this eigenvalue in cuspidal domains. ...
Added: July 27, 2026
Cham: Springer, 2026.
This open access set, LNAI 16688-16689, constitutes the proceedings of the 13th International Joint Conference, IJCAR 2026, held in Lisbon, Portugal, during July 26–29, 2026.
The 41 full research papers and 8 short papers included in these two volumes were carefully reviewed and selected from 112 submissions. The papers cover the following topical sections:
Part I: Theorem ...
Added: July 26, 2026
Dmitry Vasilyev, Gorev V., Ikhsanov R. et al., Journal of Materials Science 2026 No. 61 P. 25452–25470
The orthorhombic phase of 𝛼-Mo2 C is a key component in electrocatalytic applications, as Mo2C-based catalysts can exhibit catalytic performance comparable to or exceeding that of noble metals. Despite its technological relevance, theoretical understanding of the anisotropy in the thermal expansion and related thermoelastic properties of 𝛼-Mo2 C remains limited. In this work, first-principles calculations ...
Added: July 23, 2026
Edward R. Rzaev, Aleksandr Y. Romanov, Andrey M. Sukhov, IEEE Access 2026 Vol. 14 P. 2169–3536
This work presents a hierarchy of strictly local fault-tolerant routing algorithms for 3D mesh networks-on-chip, culminating in an algorithm that combines a live-neighbor selection rule with a bounded single-hop rollback mechanism. The proposed algorithms operate exclusively on immediate neighbor information, maintain O(1) per hop complexity, and require no global topology knowledge, additional virtual channels, or ...
Added: July 23, 2026
Borovitskaya I. V., Pimenov V. N., Korshunov S. N. et al., Physics of Atomic Nuclei 2026 Vol. 89 No. 1 P. S48–S55
The effect of high-power pulsed laser radiation (LR) generated in the GOS 1001 setup in the
Q-modulated mode (with a flux power density q equal to 1 × 1014 W/m2, pulse duration t = 50 ns, and the
number of pulses N from 1 to 8 in vacuum) on the structure and microhardness of the surface of ...
Added: July 22, 2026
Pislyakov V., Вестник Томского государственного университета. Филология 2026 № 101 С. 175–192
This article examines the use of proverbs in academic texts—specifically, articles published in Russian research journals. For the experiment, ten proverbs were selected as the intersection of two fundamentally different paremiological surveys aimed at compiling lists of popular or common Russian proverbs. One of these surveys was conducted by the classic of paremiology, G.L. Permyakov, ...
Added: July 22, 2026
Korogod D., Shapeev A., Novikov I., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 2 Article 024104
We present two models with explicit long-range electrostatics in the form of Coulomb interactions. Both models include point charges depending on their local atomic environments, and the second model also conserves a total charge of an atomic system. We combine the proposed long-range models with the local moment tensor potential (MTP) and demonstrate that they ...
Added: July 22, 2026
Sozykin K., Rybin N., Chertkov A. et al., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 113 No. 22 Article 224111
The global optimization of atomic clusters represents a fundamental challenge in computational chemistry and materials science due to the exponential growth of local minima with system size (i.e., the curse of dimensionality). We introduce a framework that overcomes this limitation by exploiting the low-rank structure of potential energy surfaces through tensor train (TT) decomposition. Our ...
Added: July 22, 2026
Loubenets E. R., / Series arxiv.org "quant-ph". 2026. No. 2607.18050.
In many quantum applications it is important to know whether or not a Bell nonlocal two-qudit state exhibits its nonlocality under correlation scenarios with some given numbers S1,S2≥1 of generalized quantum measurements at two sites. In the present article, we find analytically a new general locality condition sufficient for a nonseparable Werner state with a ...
Added: July 21, 2026
Parfenyev V., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 114 No. 1 Article 015104
Zermelo's navigation problem seeks the trajectory of minimal travel time between two points in a fluid flow. We address this problem for an agent -- such as a floating drone or active particle -- that is advected by a two-dimensional flow, self-propels at a fixed speed smaller than or comparable to the characteristic flow velocity, ...
Added: July 17, 2026
Singapore: Springer, 2024.
Included in the following conference series:
INdAM: INdAM Meeting: Kolmogorov Operators and their Applications Workshop
Conference proceedings info: INdAM 2022
Kolmogorov equations are a fundamental bridge between the theory of partial differential equations and that of stochastic differential equations that arise in several research fields.
This volume collects a selection of the talks given at the Cortona meeting by ...
Added: July 17, 2026
Veretennikov A., Pascucci A., Rondelli A., Stochastic Processes and their Applications 2026 Vol. 199 Article 104978
We present existence results for weak solutions to a broad class of degenerate McKean-Vlasov equations with rough coefficients, expanding upon and refining the techniques recently introduced by the third author. Under certain structural conditions, we also establish results concerning both weak and strong well-posedness. ...
Added: July 17, 2026
Veretennikov A., Ляппиева А. А., Теория вероятностей и ее применения 2026 Т. 71 № 2 С. 295–304
Установлен новый результат о сильной единственности для многомерного СДУ с невырожденной диффузией и частично нерегулярным сносом. Его можно рассматривать как комбинированный вариант на темы Ямада и Ватанабэ (1971), Звонкина (1974) и первого автора настоящей статьи (1980). ...
Added: July 17, 2026
С.А.Тираспольский, Ермолаев В. Т., Флаксман А. Г. et al., Труды Научной конференции по радиофизике, ННГУ, 2002 2002 С. 22–28
В данной работе рассматривается принцип передачи информации и теоретически исследуется пропускная способность MIMO системы в условиях случайного канала распространения радиоволн, обсуждаются различные алгоритмы распределения мощности передатчика по параллельным ортогональным пространственным подканалам. ...
Added: February 10, 2026
Анализ электродинамических характеристик резонансно-щелевой патч-антенны и решетки MIMO на ее основе
Никитина А. А., Никитин В. Г., Каравашкина В. Н. et al., Труды Северо-Кавказского филиала Московского технического университета связи и информатики 2025 № 1 С. 71–77
В статье выполнен анализ модели одиночной планарной резонансно-щелевой патч-антенны диапазона LowBand (33-48,4 МГц), получены результаты компьютерного моделирования ее электродинамических характеристик – диаграмм направленности (ДН), комплексного коэффициента отражения ( S11 ) и коэффициента стоячей волны (КСВН) от частоты. Исследовано влияние изменения размеров такой антенны и использования диэлектрических материалов подложки (FR-4 и тефлон) на ее радиочастотные свойства, ...
Added: January 13, 2026
Уткин М. В., Grachev N. N., Utkin B. et al., В кн.: Инновационные, информационные и коммуникационные технологии. Сборник трудов XХ Международной научно-практической конференции.: Ассоциация выпускников и сотрудников ВВИА им. проф. Жуковского, 2024. С. 237–242.
The paper focuses on the numerical simulation of an antenna array using the CST MWS package. Special attention is given to the selection of the array elements' constructive parameters, such as dielectric permittivity, emitter radius, and spacing between elements, as well as the computation of the radiation pattern. The analysis emphasizes the width of the ...
Added: February 17, 2025
Уткин М. В., Grachev N. N., Utkin B. et al., В кн.: Инновационные, информационные и коммуникационные технологии. Сборник трудов XХ Международной научно-практической конференции.: Ассоциация выпускников и сотрудников ВВИА им. проф. Жуковского, 2024. С. 233–237.
The paper focuses on the design and calculation of antenna array parameters, considering operating conditions and technical requirements. Special attention is given to the selection of constructive parameters of the «Инновационные, информационные и коммуникационные технологии» Сборник трудов XXI Международной научно-практической конференции, 2024 234 array elements, such as dielectric permittivity, emitter radius, and spacing between elements, ...
Added: February 17, 2025
Moiseev E., Ivanov K., Khabibullin R. et al., Optics and Laser Technology 2025 Vol. 183 Article 112299
We demonstrate that microlasers with an anisotropic cavity (limaçon- or quadrupole-shaped) containing quantum well-dots in the active region are able to operate under continuous wave current injection at 90 °C. Deviation of the cavity shape from circular leads to the directionality of the emission in the lateral direction, while the quality factor of the structures and ...
Added: December 23, 2024
Dmitrii Artamonov, Nikolay Grachev, Utkin B., , in: 2023 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM).: Sochi: IEEE, 2023. P. 300–305.
One of the most important indicators of the quality of radio information transmission systems is noise immunity. The most significant impact is caused by interference exceeding the level of the useful signal. In the author's previous work, a method of digital signal processing was published to combat interference of this kind. The article describes a ...
Added: September 1, 2023
Mozgovoi Y. D., Khritkin S. A., В кн.: III Всероссийская научно-техническая конференция "ПРОБЛЕМЫ СВЧ ЭЛЕКТРОНИКИ" им. В.А.Солнцева 2017.: М.: ИД Медиа Паблишер, 2017. С. 40–41.
Разработана дискретная модель многолучевого пространственно развитого микроволнового генератора, основанная на использовании эквивалентных автогенераторов с медленно меняющимися амплитудами и фазами. Амплитуды и фазы каждого эквивалентного генератора в установившемся режиме соответствуют усредненным значениям амплитуд и фаз генераторов на ансамблях нелинейных электронных осцилляторов. Рассмотрено формирование антенного поля излучения в трехмерном приближении на примере цилиндрической системы кольцевых излучателей. Каждое ...
Added: December 5, 2017