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281. "A method of solving the Cauchy problem for ordinary differential equations
... A method of solving the Cauchy problem for ordinary differential equations using Chebyshev series" . Arushanyan O.B., Volchenskova N.I., Zaletkin S.F. A numerical analytic method of solving the Cauchy problem for normal systems of ordinary differential equations is proposed. ... Keywords: ordinary differential equations, approximate analytic methods, numerical methods, orthogonal expansions, shifted Chebyshev series, Markov's quadrature formulas . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r124.html -- 3.3 Кб -- 28.01.2014
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282. "Application of the three-dimensional RapoportтАУLeas equation to problems of
... Application of the three-dimensional RapoportтАУLeas equation to problems of hydrocarbon secondary migration" . Zhuravlev A.S., Zhuravlev E.S., Shabarov A.B. The problem of modeling the processes of migration and accumulation of hydrocarbons in geological reservoirs is considered. ... Keywords: secondary migration of hydrocarbons, three-dimensional Rapoport-Leas equation, counter-current capillary-gravitational impregnation, finite-difference methods, splitting of numerical schemes . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r123.html -- 3.4 Кб -- 28.01.2014
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283. "Implementation of a finite volume method and calculation of flows of a viscous
... Implementation of a finite volume method and calculation of flows of a viscous compressible gas on graphics processor units" . Volkov K.N., Emelyanov V.N., Karpenko A.G., Smirnov P.G., Teterina I.V. Possibilities of the use of general purpose graphics processor units for the numerical simulation of flows of a viscous compressible gas are discussed. ... Keywords: graphics processor unit, parallel algorithm, gas dynamics, finite volume method, unstructured mesh, CUDA technology . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r122.html -- 3.8 Кб -- 28.01.2014
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284. "Numerical solution of fluid mechanics problems on general-purpose graphics
... Numerical solution of fluid mechanics problems on general-purpose graphics processor units" . Volkov K.N., Emelyanov V.N., Karpenko A.G., Kurova I.V., Serov A.E., Smirnov P.G. Possibilities of using general-purpose graphics processor units for the solution of fluid mechanics problems are discussed. ... A number of model problems are solved on graphics processor. ... Keywords: general-purpose graphics processor units, parallel algorithms, gas and fluid mechanics, grid methods, CUDA technology . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r111.html -- 3.8 Кб -- 28.01.2014
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285. "Stability analysis of the lattice Boltzmann schemes for solving the diffusion
... Stability analysis of the lattice Boltzmann schemes for solving the diffusion equation" . Krivovichev G.V. The one-parameter families of lattice Boltzmann schemes for solving the linear diffusion equation in the cases of D2Q5, D2Q7 and D2Q9 velocity sets are considered. ... The stability with respect to initial conditions is studied by the von Neumann method. ... Keywords: lattice Boltzmann method, linear diffusion equation, stability with respect to initial conditions, von Neumann method . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r121.html -- 3.0 Кб -- 28.01.2014
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286. "Application of r-solutions to reconstructing the initial tsunami waveform"
... Application of r -solutions to reconstructing the initial tsunami waveform" . Voronina T.A. A new approach to reconstructing the initial tsunami waveform in a tsunami source area is proposed. ... The ill-posed inverse problem of reconstructing initial tsunami waveforms is regularized by means of a least-square inversion using the truncated SVD approach. ... Keywords: tsunami, tsunami numerical modeling, ill-posed inverse problem, regularization, singular value decomposition, r -solution . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r120.html -- 3.7 Кб -- 28.01.2014
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287. "Numerical simulation of seismic wave propagation in media with viscoelastic
... Numerical simulation of seismic wave propagation in media with viscoelastic intrusions" . ... However, viscoelastic formations typically take as few as 10 to 20% of the model. ... PDF (in Russian) (359KB) . PDF. zip (in Russian) (327KB) . Vishnevsky D.M., e-mail: vishnevskydm@ipgg.sbras.ru ; Lisitsa V.N., e-mail: lisitsavv@ipgg.sbras.ru тАУ Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of Russian Academy of Sciences; prospect Koptyuga 3, Novosibirsk, 630090, Russia; . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r119.html -- 3.6 Кб -- 28.01.2014
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288. "Supercomputer simulation of plasma electron dynamics in a magnetic trap with
... Supercomputer simulation of plasma electron dynamics in a magnetic trap with inverse magnetic mirrors and multipole magnetic walls" . Berendeev E.A., Ivanov A.V., Lazareva G.G., Snytnikov A.V. The problem of simulation of plasma electron dynamics in a magnetic trap with inverse magnetic mirrors and multipole magnetic walls is considered. ... Keywords: particle-in-cell method, parallel programming, simulation of physical processes, plasma physics . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r118.html -- 4.3 Кб -- 28.01.2014
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289. "An iterative method for the solution of inverse shaping problems under creep
... An iterative method for the solution of inverse shaping problems under creep conditions" . Bormotin K.S. Inverse shaping problems are formulated in the form of quasistatic deformation of bodies. An iterative method for the solution of inverse shaping problems under creep is proposed in the case of structural elements design. ... Keywords: inverse shaping problems under creep, variational inequalities, sufficient uniqueness conditions, iterative methods, finite elements methods . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r117.html -- 2.7 Кб -- 28.01.2014
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290. "On cubature formulas exact for Haar polynomials in the case of two-variable
... On cubature formulas exact for Haar polynomials in the case of two-variable functions satisfying the general Lipschitz condition" . Kirillov K.A. A number of upper error estimates are obtained for the cubature formulas possessing the Haar d -property in the case of two-variable functions belonging to the Lip ( L 1 ,L 2 ) classes and satisfying the general Lipschitz condition. ... Keywords: Haar d -property, errors of cubature formulas, Lip ( L 1 ,L 2 ) classes of functions . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r116.html -- 2.9 Кб -- 28.01.2014
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291. "A parallel implementation of the subgradient algorithm for maximizing the
... A parallel implementation of the subgradient algorithm for maximizing the Lagrangian dual function in the p-median problem" . Vasilyev I.L., Ushakov A.V. An algorithm for searching lower bounds of the optimal value in the p-median problem is considered on the basis of constructing a Lagrangian relaxation and minimizing the resulting Lagrangian dual function with the subgradient algorithm. ... Keywords: p-median problem, parallel programming, Lagrangian relaxation, subgradient method, MPI . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r102.html -- 3.1 Кб -- 28.01.2014
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292. "A software complex for the analysis and visualization of monitoring and
... A software complex for the analysis and visualization of monitoring and forecast of data on climate changes" . ... Martynova Yu.V., Syshchenko S.P., Skvortsov A.V. A software complex for the analysis and visualization of monitoring and forecast of data on climate changes is considered. ... Keywords: climate change monitoring, information systems, Web-GIS technologies . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r115.html -- 5.4 Кб -- 28.01.2014
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293. "On evaluation of codifferentials"
... On evaluation of codifferentials" . Angelov T.A. In recent years, a mathematical apparatus for nonsmooth analysis is intensively developing, which allows one to analyze various problems with nonsmooth functions and to solve nondifferentiable optimization problems. ... This paper presents the basic elements of a method and software for solving nondifferentiable optimization problems. ... Keywords: nonsmooth analysis, nondifferentiable optimization, codifferential . PDF (in Russian) (241KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r114.html -- 2.9 Кб -- 28.01.2014
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294. "Mathematical modeling of the formation of suffocation conditions in shallow
... Mathematical modeling of the formation of suffocation conditions in shallow basins using multiprocessor computing systems" . ... The numerical results show that it is possible to study the formation of suffocation conditions and to exert a positive effect on the ecological system using the methods ichthyological modeling. Keywords: mathematical model, parallel computing, MPI, Azov sea, suffocation phenomena, vortex flow, water bloom . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r113.html -- 3.5 Кб -- 28.01.2014
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295. "Methods of text fragment relevance estimation based on the topic model
... Methods of text fragment relevance estimation based on the topic model analysis in the text summarization problem" . ... A new method of text fragment relevance estimation is proposed. ... A number of experiments performed with the considered methods of text fragment relevance estimation show the superiority of methods based on the latent semantic analysis over the probabilistic topic models in single document summarization problems. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r112.html -- 4.5 Кб -- 28.01.2014
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296. "The source control in the problem of heat conduction"
... The source control in the problem of heat conduction" . Morozov V.A., Lezhnev V.G., Tokarev N.M. 0) temperature distribution is considered. The correctness of the problem is proved, a convergent algorithm is constructed, and an algorithm for solving the inverse problem of heat conduction is proposed. ... Keywords: heat conduction, boundary value problems, inverse problem of heat conduction, control of distributed parameters . PDF (in Russian) (121KB) . PDF. zip (in Russian) (98.7KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r110.html -- 3.2 Кб -- 28.01.2014
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297. "Improvement of the rate of convergence estimates for some classes of
... Improvement of the rate of convergence estimates for some classes of difference schemes for solving an ill-posed Cauchy problem" . Kokurin M.M. A number of difference schemes for solving an ill-posed Cauchy problem in a Banach space are studied. ... The classes of the schemes allowing the further strengthening of these estimates are specified. ... Keywords: abstract Cauchy problem, Banach space, ill-posed problems, difference schemes, rate of convergence, error estimates, operator calculus . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r109.html -- 3.1 Кб -- 28.01.2014
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298. "Acid effect on multilayer oil reservoirs"
... Acid effect on multilayer oil reservoirs" . Zakirov T.R., Nikiforov A.I. The effect of hydrochloric acid on a layered heterogeneous stratum is considered. ... PDF (in Russian) (300KB) . PDF. zip (in Russian) (233KB) . Zakirov T.R., e-mail: timurz0@mail.ru ; Nikiforov A.I., e-mail: nikiforov@mail.knc.ru тАУ Institute for Mechanics and Engineering, Kazan Science Center, Russian Academy of Sciences; ulitsa Lobachevskogo, 2/31, Kazan 420111 Russia ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r108.html -- 2.9 Кб -- 28.01.2014
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299. "The structure of a stable manifold for fully implicit schemes"
... The structure of a stable manifold for fully implicit schemes" . Vedernikova E.Yu., Kornev A.A. An analog of the Hadamard-Perron theorem on the existence of a local stable manifold in a neighborhood of a fixed hyperbolic-type point for implicit mappings is proved. ... Vedernikova E.Yu., e-mail: elvira.vedernikova@socgen.com ; Kornev A.A., e-mail: kornev@mech.math.msu.su тАУ Moscow State University, Faculty of Mechanics and Mathematics; Leninskiye Gory 1, Moscow, 119899, Russia ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r107.html -- 3.0 Кб -- 28.01.2014
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300. "Stationary distribution for the Jacobi equation with a large random curvature
... Stationary distribution for the Jacobi equation with a large random curvature parameter" . Illarionov E.A. A generalization of the results obtained previously for the case when the curvature parameter of the Jacobi equation is a random quantity distributed on a large or infinite interval is proposed. ... Keywords: stationary distribution, product of matrices, integral equation, Jacobi equation . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r106.html -- 3.0 Кб -- 28.01.2014
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