Results 31 to 40 of about 72 (68)
Residual Scaling Techniques in Multigrid, I: Equivalence Proof
, 1996 This paper addresses the residual scaling techniques (coarse-grid-correction optimization techniques) in multigrid methods. We survey recent developments in this area and prove the equivalence of the over-weighted residual technique and the over ...
Jun Zhang
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, 1998 We investigate the use of sparse approximate inverse techniques in a multi-level block ILU preconditioner to design a robust and efficient parallelizable preconditioner for solving general sparse matrices.
Jun Zhang
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Preconditioned Krylov Subspace Methods for Solving Nonsymmetric Matrices from CFD Applications
, 1998 We conduct experimental study on the behavior of several preconditioned iterative methods to solve nonsymmetric matrices arising from computational fluid dynamics (CFD) applications.
Jun Zhang
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Optimal Injection Operator and High Order Schemes for Multigrid Solution of 3D Poisson Equation
, 1999 We present a multigrid solution of the three dimensional Poisson equation with a fourth order 19-point compact finite difference scheme. Using a red-black ordering of the grid points and some geometric considerations, we derive an optimal scaled ...
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Acceleration and Stabilization Properties of Minimal Residual Smoothing Technique in Multigrid
, 1998 We analyze the standard multigrid method accelerated by a minimal residual smoothing (MRS) technique. We show that MRS can accelerate the convergence of the slow residual components, thus accelerates the overall multigrid convergence.
Jun Zhang
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, 2007 This is the user guide for Bruce's General Solver (BuGS). BuGS is a toolkit for solving single space dimensional, nonlinear systems of partial differential equations which are at most order one in time and order two in space.
Bruce Ayati
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Повишаване на изчислителната скорост на ускорена схема за възрастово структуриран дифузионен модел
, 2011 Дойчин Бояджиев, Галена Пеловска - В статията се предлага оптимизиран алгоритъм, който е по-бърз в сравнение с по- рано описаната ускорена (модифицирана STS) диференчна схема за възрастово структуриран популационен модел с дифузия.
Boyadzhiev, Doychin, Pelovska, Galena
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On Cyclic Reduction and Finite Difference Schemes
, 1999 We investigate a family of finite difference schemes for discretizing the two dimensional Poisson equation on both the standard and the reduced grids. We study the relation between the cyclic reduction method and the discretization schemes on different ...
Jun Zhang +2 more
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Central finite-difference stencils for the Hessian require evaluations on both sides of each point and are therefore difficult to apply directly near a domain boundary, on scattered points, or when measurements are missing, without additional treatment ...
RamaKrishna Pasupuleti
core +1 more source
Fully implicit ADI schemes for solving the nonlinear Poisson-Boltzmann equation
Computational and Mathematical Biophysics, 2013 Geng Weihua, Zhao Shan
doaj +1 more source