?
Вычислительные технологии в естественных науках.Методы суперкомпьютерного моделирования. Сборник трудов
Ч. 3: В серии "Механика, управление и информатика". Т. 60. Вып. 7.
M. :
-, 2015.
Academic editor: Nazirov R., Shchur L.
Under the general editorship: Nazirov R., Shchur L.
This issue is the collection of the papers based on the talks presented at the extended workshop “Methods of simulations on supercomputers”, which was held at 17–19 November 2014, in Tarusa hotel Interkosmos of the RAS Space Research Institute. It is the Conference in the series of extended workshops and conferences, devoted to the computer technologies in natural sciences.
Priority areas:
IT and mathematics
Language:
Russian
Russkov A., Chulkevich R., Shchur L., Computer Physics Communications 2021 Vol. 261 P. 107786
The population annealing method is a promising approach for large-scale simulations because it is potentially scalable on any parallel architecture. We present an implementation of the algorithm on a hybrid program architecture combining CUDA and MPI. The problem is to keep all general-purpose graphics processing unit devices as busy as possible by efficiently redistributing replicas. ...
Added: December 28, 2020
Ducomet B., Zlotnik A., Romanova A. V., / Cornell University. Series math "arxiv.org". 2013. No. 1309.7280.
An initial-boundary value problem for the $n$-dimensional ($n\geq 2$) time-dependent Schrödinger equation in a semi-infinite (or infinite) parallelepiped is considered. Starting from the Numerov-Crank-Nicolson finite-difference scheme, we first construct higher order scheme with splitting space averages having much better spectral properties for $n\geq 3$. Next we apply the Strang-type splitting with respect to the potential ...
Added: October 1, 2013
Пенза : ПГУ, 2015
В сборник трудов включены доклады юбилейного ХХ-го Международного симпозиума «Надежность и качество», проходившего с 25 по 31 мая 2015 г. в городе Пензе.
Рассмотрены актуальные проблемы теории и практики повышения надежности и качества; эффективности внедрения инновационных и информационных технологий в фундаментальных научных и прикладных исследованиях, образовательных и коммуникативных системах и средах, экономике и юриспруденции; методов и ...
Added: May 31, 2015
Чупров И. А., Efremenko D., Gao J. et al., / arXiv. Series 2209 "[cs.NE]". 2022. No. 2209.14641.
Single-mode optical fibers (SMFs) have become the backbone of modern communication systems. However, their throughput is expected to reach its theoretical limit in the nearest future. Utilization of multimode fibers (MMFs) is considered as one of the most promising solutions rectifying this capacity crunch. Nevertheless, differential equations describing light propagation in MMFs are a way ...
Added: January 20, 2024
Balashov V., Zlotnik Alexander, Savenkov E., Russian Journal on Numerical Analysis and Mathematical Modelling 2017 Vol. 32 No. 6 P. 347-358
A study of a regularized quasi-hydrodynamic system of equations for the two-component isothermal mixture with the diffuse interface is accomplished. Under general assumptions on the Helmholtz free energy of the mixture, the energy balance equation with non-positive energy production and its corollary, the law of non-increasing total energy, are derived. The necessary and sufficient conditions ...
Added: February 26, 2017
М. : Издательство Московского университета, 2012
The project “Supercomputer Education” of the presidential Commission for Modernization and Technological Development of Russian Economy has come to an end. Within this project the program of creation the integral system of supercomhuter education in Russia has been completed for the first time. ...
Added: March 25, 2014
Долгопрудный : МФТИ, 2016
Сборник предназначен для широкого круга специалистов, занимаю- щихся проблемами управления и обработки информации, математическо- го и компьютерного моделирования.
Отражены результаты научных исследований, ведущихся в Москов- ском физико-техническом институте (государственном университете) в области вычислительной математики, математической кибернетики, ком- пьютерных и информационных технологий. ...
Added: October 20, 2018
Zlotnik A. A., Chetverushkin B. N., Doklady Mathematics 2017 Vol. 95 No. 3 P. 276-281
Entropy balance in the one-dimensional hyperbolic quasi-gasdynamic (HQGD) system of equations is analyzed. In regular flow regimes, it is shown that the behavior of entropy in the HQGD system is determined by terms involving the natural viscosity and thermal conductivity coefficients. The total entropy production differs from the Navier–Stokes equations for viscous compressible heat-conducting gases ...
Added: April 25, 2017
М. : Физический факультет МГУ им. М.В. Ломоносова, 2014
Сборник тезисов докладов Международного научного семинара Актуальные проблемы математической физики. МГу им. М.В. Ломоносова, 28-29 ноября 2014 г. ...
Added: November 28, 2014
Madera A. G., Компьютерные исследования и моделирование 2019 Т. 11 № 4 С. 613-630
A hierarchical method of mathematical and computer modeling of interval-stochastic thermal processes in complex electronic systems for various purposes is developed. The developed concept of hierarchical structuring reflects both the constructive hierarchy of a complex electronic system and the hierarchy of mathematical models of heat exchange processes. Thermal processes that take into account various physical ...
Added: November 1, 2019
Vostrikov A. V., Borisov N., Abrameshin A. E., Качество. Инновации. Образование 2013 № 8 (99) С. 61-65
In work research of numerical stability of earlier reduced scheme of numerical integration of system of the linear ordinary differential equations developed by authors is conducted. The received condition of numerical stability of the reducing scheme proves possibility of use of this scheme in practice. Operability of the reduced scheme was tested on a real ...
Added: September 9, 2013
Pogudin G., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2017 Vol. 96 P. 033303-1-033303-8
We compute the free energy of the planar monomer-dimer model. Unlike the classical planar dimer model, an exact solution is not known in this case. Even the computation of the low-density power series expansion requires heavy and nontrivial computations. Despite the exponential computational complexity, we compute almost three times more terms than were previously known. ...
Added: November 1, 2019
Издательство Казанского (Приволжского) федерального университета, 2016
Полные тексты докладов XI Всероссийского съезда по фундаментальным проблемам теоретической и прикладной механики опубликованы в электронном виде на диске и сайте съезда. ...
Added: December 11, 2016
Красноярск : Сибирский государственный аэрокосмический университет, 2010
Сборник содержит материалы XIV Международной научной конференции «Решетневские чтения», посвященной памяти генерального конструктора ракетно-космических систем академика М. Ф. Решетнева, в которых представлены результаты исследований ученых и специалистов предприятий и организаций аэрокосмической отрасли, преподавателей, научных сотрудников, аспирантов и студентов высших учебных заведений Российской Федерации и стран ближнего и дальнего зарубежья. Сборник рассчитан на научных сотрудников, работников ...
Added: August 31, 2015
M. : Association of graduates and employees of AFEA named after prof. Zhukovsky, 2018
The materials of The International Scientific – Practical Conference is presented below.
The Conference reflects the modern state of innovation in education, science, industry and social-economic sphere, from the standpoint of introducing new information technologies.
It is interesting for a wide range of researchers, teachers, graduate students and professionals in the field of innovation and information technologies. ...
Added: May 24, 2018
Пенза : ПГУ, 2016
В сборник трудов включены доклады ХХI-го Международного симпозиума «Надежность и качество», проходившего с 23 по 29 мая 2016 г. в городе Пензе.
Рассмотрены актуальные проблемы теории и практики повышения надежности и качества; эффективности внедрения инновационных и информационных технологий в фундаментальных научных и прикладных исследованиях, образовательных и коммуникативных системах и средах, экономике и юриспруденции; методов и средств ...
Added: May 27, 2016
Ducomet B., Zlotnik A., Zlotnik I. A., / Cornell University. Series math "arxiv.org". 2013. No. arxiv: 1303.3471.
We consider an initial-boundary value problem for a generalized 2D time-dependent Schrödinger equation on a semi-infinite strip. For the Crank-Nicolson finite-difference scheme with approximate or discrete transparent boundary conditions (TBCs), the Strang-type splitting with respect to the potential is applied. For the resulting method, the uniform in time L2-stability is proved. Due to the ...
Added: March 16, 2013
М. : МИЭМ НИУ ВШЭ, 2013
The materials of The Second International Scientific – Practical Conference is presented below. The Conference reflects the modern state of innovation in education, science, industry and social-economic sphere, from the standpoint of introducing new information technologies.
Digest of Conference materials is presented in 4 parts. It is interesting for a wide range of researchers, teachers, graduate ...
Added: April 18, 2013
Koltsov S., Physica A: Statistical Mechanics and its Applications 2018 Vol. 512 P. 1192-1204
This study proposes to minimize Rényi and Tsallis entropies for finding the optimal number of topics T in topic modeling (TM). A promising tool to obtain knowledge about large text collections, TM is a method whose properties are underresearched; in particular, parameter optimization in such models has been hindered by the use of monotonous quality ...
Added: October 11, 2018
Zlotnik Alexander, Zlotnik Ilya, Computational Methods in Applied Mathematics 2015 Vol. 15 No. 2 P. 233-245
We consider the Cauchy problem for the 1D generalized Schrὅdinger equation on the whole axis. To solve it, any order finite element in space and the Crank-Nicolson in time method with the discrete transpa\-rent boundary conditions (TBCs) has recently been constructed. Now we engage the global Richardson extrapolation in time to derive the high order ...
Added: March 3, 2015
М. : Институт прикладной математики им. М.В. Келдыша РАН, 2018
Содержит материалы, представленные к рассмотрению на научно-практический семинар “Новые информационные технологии в автоматизированных системах”, проводившейся в Москве 20 апреля 2018 г.
Представляет интерес для научных сотрудников, преподавателей, аспирантов и студентов, работающих по указанным научным направлениям. ...
Added: April 20, 2018
Rulkov N., Hunt A. M., Rulkov P. et al., American Journal of Engineering and Applied Sciences 2016 Vol. 9 No. 4 P. 973-984
The discreet-time (map-based) approach to modeling nonlinear dynamics of spiking and spiking-bursting activity of neurons has demonstrated its very high efficiency in simulations of neuro-biologically realistic behavior both in large-scale network models for brain activity studies and in real-time operation of Central Pattern Generator network models for biomimetic robotics. This paper studies the next step ...
Added: January 15, 2017
Каз. : СМУиС, 2013
Вторая Всероссийская молодежная научная Интернет-конференция «Грани науки» проводится Казанским (Приволжским) федеральным университетом, Советом молодых ученых и специалистов города Казани (http://kznscience.ru) и Комитетом по делам детей и молодежи Исполкома Казани. ...
Added: July 7, 2016
Silaev M. A., V. A. Silaeva, Journal of Physics: Condensed Matter 2013 Vol. 25 No. 22 P. 1-10
We investigate the multiquantum vortex states in a type-II superconductor in both 'clean' and 'dirty' regimes defined by impurity scattering rate. Within a quasiclassical approach we calculate self-consistently the order parameter distributions and electronic local density of states (LDOS) profiles. In the clean case we find the low temperature vortex core anomaly predicted analytically by ...
Added: November 19, 2013