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Found 81 Documents (Results 1–81)

Efficient error control in numerical integration of ordinary differential equations and optimal interpolating variable-stepsize peer methods. (Russian, English) Zbl 1313.65208

Zh. Vychisl. Mat. Mat. Fiz. 54, No. 4, 591- 607 (2014); translation in Comput. Math. Math. Phys. 54, No. 4, 604-619 (2014).
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The fractional steps domain decomposition method for numerical solution of a class of viscous wave equations. (Russian, English) Zbl 1299.76048

Zh. Vychisl. Mat. Mat. Fiz. 53, No. 7, 1192-1192 (2013); translation in Comput. Math. Math. Phys. 53, No. 7, 1013-1025 (2013).
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Solving the order reduction phenomenon in variable step size quasi-consistent Nordsieck methods. (Russian, English) Zbl 1274.65193

Zh. Vychisl. Mat. Mat. Fiz. 52, No. 11, 2004-2022 (2012); translation in Comput. Math. Math. Phys. 52, No. 11, 1547-1564 (2012).
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Uniform grid approximation of nonsmooth solutions with improved convergence for a singularly perturbed convection-diffusion equation with characteristic layers. (Russian, English) Zbl 1274.65286

Zh. Vychisl. Mat. Mat. Fiz. 52, No. 9, 1633-1654 (2012); translation in Comput. Math. Math. Phys. 52, No. 9, 1239-1259 (2012).
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Application of the spherical metric tensor to grid adaptation and the solution of applied problems. (Russian, English) Zbl 1274.65267

Zh. Vychisl. Mat. Mat. Fiz. 52, No. 4, 653-670 (2012); translation in Comput. Math. Math. Phys. 52, No. 4, 548-564 (2012).
MSC:  65M50 35K05
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Mesh adaptation based on functional a posteriori estimates with Raviart-Thomas approximation. (Russian, English) Zbl 1274.65312

Zh. Vychisl. Mat. Mat. Fiz. 52, No. 7, 1277-1288 (2012); translation in Comput. Math. Math. Phys. 52, No. 7, 1044-1054 (2012).
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Generation of three-dimensional Delaunay meshes from weakly structured and inconsistent data. (Russian, English) Zbl 1249.65041

Zh. Vychisl. Mat. Mat. Fiz. 52, No. 3, 499-520 (2012); translation in Comput. Math. Math. Phys. 52, No. 3, 427-447 (2012).
MSC:  65D18 65N50
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Approximation of the Jacobian matrix in \((m, 2)\)-methods for solving stiff problems. (Russian, English) Zbl 1249.65149

Zh. Vychisl. Mat. Mat. Fiz. 51, No. 12, 2194-2208 (2011); translation in Comput. Math. Math. Phys. 51, No. 12, 2065-2078 (2011).
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The principle of minimum of partial local variations for determining convective flows in the numerical solution of one-dimensional nonlinear scalar hyperbolic equations. (Russian, English) Zbl 1249.65166

Zh. Vychisl. Mat. Mat. Fiz. 51, No. 5, 881-897 (2011); translation in Comput. Math. Math. Phys. 51, No. 5, 824-839 (2011).
MSC:  65M06 65N50
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Development of mathematical models and numerical methods for aerodynamic design on multiprocessor computers. (Russian, English) Zbl 1224.35321

Zh. Vychisl. Mat. Mat. Fiz. 51, No. 2, 303-328 (2011); translation in Comput. Math. Math. Phys. 51, No. 2, 284-307 (2011).
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Automatic step size and order control in one-step collocation methods with higher derivatives. (Russian, English) Zbl 1224.65190

Zh. Vychisl. Mat. Mat. Fiz. 50, No. 6, 1060-1077 (2010); translation in Comput. Math., Math. Phys. 50, No. 6, 1006-1023 (2010).
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Generalization of the hybrid monotone second-order finite difference scheme for gas dynamics equations to the case of unstructured 3D grid. (Russian, English) Zbl 1224.35349

Zh. Vychisl. Mat. Mat. Fiz. 50, No. 5, 923-936 (2010); translation in Comput. Math., Math. Phys. 50, No. 5, 877-889 (2010).
MSC:  35Q35 65M50 85A20
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Conservative finite difference scheme for a singularly perturbed elliptic reaction-diffusion equation: approximation of solutions and derivatives. (Russian, English) Zbl 1224.65238

Zh. Vychisl. Mat. Mat. Fiz. 50, No. 4, 665-678 (2010); translation in Comput. Math., Math. Phys. 50, No. 4, 633-645 (2010).
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Algorithm for generating a conformal quasi-hierarchical triangular mesh that weakly \(\delta\)-approximates given polygonal lines. (Russian, English) Zbl 1199.65061

Zh. Vychisl. Mat. Mat. Fiz. 49, No. 5, 874-878 (2009); translation in Comput. Math., Math. Phys. 49, No. 5, 842-845 (2009).
MSC:  65D18 65N50 65N55
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Generation of three-dimensional block-structured grids based on rotation of two-dimensional multiply connected cross sections. (Russian. English summary) Zbl 07814494

Zh. Vychisl. Mat. Mat. Fiz. 48, No. 11, 2058-2066 (2008); translation in Comput. Math. Math. Phys. 48, No. 11, 2093-2101 (2008).
MSC:  65N50
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Automatic parallel generation of tetrahedral grids by using a domain decomposition approach. (Russian, English) Zbl 1199.65397

Zh. Vychisl. Mat. Mat. Fiz. 48, No. 8, 1448-1457 (2008); translation in Comput. Math. Math. Phys. 48, No. 8, 1367-1375 (2008).
MSC:  65N50 65Y15 65Y05
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Two splitting schemes for nonstationary convection-diffusion problems on tetrahedral meshes. (Russian, English) Zbl 1177.76381

Zh. Vychisl. Mat. Mat. Fiz. 48, No. 8, 1429-1447 (2008); translation in Comput. Math. Math. Phys. 48, No. 8, 1349-1366 (2008).
MSC:  76Rxx 65N50 35K55
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Automatic step size and order control in explicit one-step extrapolation methods. (Russian, English) Zbl 1199.65262

Zh. Vychisl. Mat. Mat. Fiz. 48, No. 8, 1392-1405 (2008); translation in Comput. Math. Math. Phys. 48, No. 8, 1313-1326 (2008).
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Approximation of a system of singularly perturbed reaction-diffusion parabolic equations in a rectangle. (Russian, English) Zbl 1164.35400

Zh. Vychisl. Mat. Mat. Fiz. 48, No. 4, 660-673 (2008); translation in Comput. Math. Math. Phys. 48, No. 4, 627-640 (2008).
MSC:  35K57 65L50
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Uniform grid approximation of nonsmooth solutions to the mixed boundary value problem for a singularly perturbed reaction-diffusion equation in a rectangle. (Russian, English) Zbl 1201.65148

Comput. Math. Math. Phys. 48, No. 1, 85-108 (2008); translation from Zh. Vychisl. Mat. Mat. Fiz. 48, No. 1, 90-114 (2008).
MSC:  65M06 35B25 35J25
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On the construction of interpolation mesh surfaces. (Russian, English) Zbl 1210.65142

Zh. Vychisl. Mat. Mat. Fiz. 47, No. 1, 11-15 (2007); translation in Comput. Math. Math. Phys. 47, No. 1, 9-13 (2007).
MSC:  65L50
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The use of solutions on embedded grids for the approximation of singularly perturbed parabolic convection-diffusion equations on adapted grids. (Russian. English summary) Zbl 07811664

Zh. Vychisl. Mat. Mat. Fiz. 46, No. 9, 1617-1637 (2006); translation in Comput. Math. Math. Phys. 46, No. 9, 1539-1559 (2006).
MSC:  65M50
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Grid approximation of singularly perturbed parabolic equations in the presence of weak and strong transient layers induced by a discontinuous right-hand side. (Russian, English) Zbl 1210.35145

Zh. Vychisl. Mat. Mat. Fiz. 46, No. 3, 407-420 (2006); translation in Comput. Math. Math. Phys. 46, No. 3, 388-401 (2006).
MSC:  35K15 35B25 65L50
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A method of asymptotic constructions with improved accuracy for quasilinear singularly perturbed parabolic convection-diffusion equation. (Russian, English) Zbl 1210.65143

Zh. Vychisl. Mat. Mat. Fiz. 46, No. 2, 242-261 (2006); translation in Comput. Math. Math. Phys. 46, No. 2, 231-250 (2006).
MSC:  65L50 35B25
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Solving parabolic equations on locally refined grids. (Russian, English) Zbl 1101.35328

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 11, 2031-2043 (2005); translation in Comput. Math. Math. Phys. 45, No. 11, 1952-1964 (2005).
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Second order accurate up to the axis of symmetry finite element iteration methods with splitting of boundary conditions for the Stokes and the like systems in a spherical layer. (Russian, English) Zbl 1095.35029

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 5, 846-889 (2005); translation in Comput. Math. Math. Phys. 45, No. 5, 816-857 (2005).
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Correction of an unstructured Lagrangian mesh by imposing differentiable constraints. (Russian, English) Zbl 1094.76051

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1484-1497 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1433-1446 (2005).
MSC:  76M99 65M50 65N50
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Control of properties of numerical difference grids by virtue of monitoring metrics. (Russian, English) Zbl 1087.65111

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1466-1483 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1416-1431 (2005).
MSC:  65N50 65N06 35J05
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The usage of lacunas of hyperbolic equations and the difference potential method for calculation the wave diffraction near bounded domain of scattering body for a long time. (Russian, English) Zbl 1117.78314

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1435-1449 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1385-1399 (2005).
MSC:  78A25 78A45 65M50
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Error evaluations for controllable adaptive algorithms based on the Hessian recovery. (Russian, English) Zbl 1087.65113

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1424-1434 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1374-1384 (2005).
MSC:  65N50 65N15
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Bi-Lipschitz parametrization of non-smooth surfaces and surface grid generation. (Russian, English) Zbl 1087.65012

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1383-1398 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1334-1349 (2005).
MSC:  65D17 65D18 65N50
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Three-dimensional grid generation by variational barrier method for calculations of multistage axial turbines. (Russian, English) Zbl 1113.76063

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 8, 1374-1382 (2005); translation in Comput. Math. Math. Phys. 45, No. 8, 1325-1333 (2005).
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A fifth-order five-stage embedded method of the Dormand-Prince type. (Russian, English) Zbl 1078.65064

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 7, 1181-1191 (2005); translation in Comput. Math. Math. Phys. 45, No. 7, 1140-1150 (2005).
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The numerical solution of initial-boundary value problems for the Sobolev type equations on quasi-uniform grids. (Russian, English) Zbl 1105.49035

Zh. Vychisl. Mat. Mat. Fiz. 44, No. 3, 493-513 (2004); translation in Comput. Math. Math. Phys. 44, No. 3, 465-484 (2004).
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Anisotropic adaptation of three-dimensional irregular grids to the problems of gasdynamic computations. (Russian, English) Zbl 1118.76054

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 6, 909-919 (2003); translation in Comput. Math. Math. Phys. 43, No. 6, 870-879 (2003).
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Robust discrete grid generation on plane irregular regions. (Russian, English) Zbl 1076.65106

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 6, 884-892 (2003); translation in Comput. Math. Math. Phys. 43, No. 6, 845-853 (2003).
MSC:  65N50
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Algorithms for three-dimensional structured grid generation. (Russian, English) Zbl 1076.65108

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 6, 875-883 (2003); translation in Comput. Math. Math. Phys. 43, No. 6, 836-844 (2003).
MSC:  65N50
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Optimal triangulations: existence, approximations, and double differentiation of \(P_1\) finite element functions. (Russian, English) Zbl 1076.65112

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 6, 866-874 (2003); translation in Comput. Math. Math. Phys. 43, No. 6, 827-835 (2003).
MSC:  65N50 65N15 65N30
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On piecewise-smooth homeomorphic mappings of bounded domains and its applications to the theory of grids. (Russian, English) Zbl 1076.65107

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 6, 808-817 (2003); translation in Comput. Math. Math. Phys. 43, No. 6, 772-781 (2003).
MSC:  65N50
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An adaptive algorithm for computing a function on the Lipschitzian boundary of a three-dimensional body from a given gradient, and its application in magnetostatics. (Russian, English) Zbl 1140.78307

Zh. Vychisl. Mat. Mat. Fiz. 42, No. 12, 1836-1851 (2002); translation in Comput. Math. Math. Phys. 42, No. 12, 1764-1779 (2002).
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Change of grid functions of dependent variables in finite-difference equations. (Russian, English) Zbl 1058.65087

Zh. Vychisl. Mat. Mat. Fiz. 42, No. 2, 235-248 (2002); translation in Comput. Math. Math. Phys. 42, No. 2, 224-237 (2002).
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