搜索结果: 1-10 共查到“计算数学 multigrid”相关记录10条 . 查询时间(0.162 秒)
A Type of Multigrid Method for Eigenvalue Problem
Eigenvalue problem multigrid multi-level correction finiteelement method
2012/8/10
In this paper, a new type of iteration method is proposed to solve eigenvalue
problem by finite element method. With this new scheme, solving
eigenvalue problem is transformed to solving a series of...
An Efficient Multigrid Method for Molecular Mechanics Modeling in Atomic Solids
Multigrid method Linear-scaling algorithm Cauchy-Born rule Nanoindentation.
2012/8/10
We propose a multigrid method to solve the molecular mechanics model
(molecular dynamics at zero temperature). The Cauchy-Born elasticity model is employed
as the coarse grid operator and the elasti...
ON UNIFORM CONVERGENCE THEORY OF LOCAL MULTIGRID METHODS IN H1(Ω) AND H(curl,Ω)
Maxwell’s equations Lagrangian finite elements edge elements local multigridmethod successive subspace correction
2012/8/10
We consider the convergence theory of local multigrid methods for H1()-elliptic
and H(curl,)-elliptic variational problems on bounded Lipschitz domains. In the context of lowest
order conforming fin...
Jacobi-type Gauss-Seidel Smoother with Error Compensation for Parallel Multigrid
parallel multigrid parallel Gauss-Seidel JGS JGSEC
2012/8/10
Smoother is the most important component of parallel multigrid methods, however,
the widely used Gauss-Seidel smoother is difficult to be parallelized. This paper
proposes a new parallel smoother, J...
Cascadic Multigrid Methods For Parabolic Problems
Cascadic multigrid method parabolic problem element methods backwardEuler scheme smoother stability optimal error order optimal complexity
2012/8/8
In this paper, we consider the cascadic multigrid method for a parabolic type equa-
tion. Backward Euler approximation in time and linear 痭ite element approximation in space are
employed. A stabilit...
Local Multigrid In H(curl)
Edge elements local multigrid stable multilevel splittings subspace correctiontheory regular decompositions of H(curl ? Helmholtz-type decompositions
2012/8/8
We consider H(curl; ?-elliptic variational problems on bounded Lipschitz polyhedra
and their 痭ite element Galerkin discretization by means of lowest order edge elements. We assume
that the underlyin...
Convergence analysis of a multigrid algorithm for the acoustic single layer equation
Convergence analysis multigrid algorithm acoustic single layer equation
2012/2/29
We present and analyze a multigrid algorithm for the acoustic single layer equation in two dimensions. The boundary element formulation of the equation is based on piecewise constant test functions an...
Multigrid Preconditioner for Nonconforming Discretization of Elliptic Problems with Jump Coefficients
Multigrid Preconditioner Elliptic Problems Jump Coefficients Numerical Analysis
2011/9/1
Abstract: In this paper, we present a multigrid preconditioner for solving the linear system arising from the piecewise linear nonconforming Crouzeix-Raviart discretization of second order elliptic pr...
Multigrid Algorithm for the Coupling System of Natural Boundary Element Method and Finite Element Method for Unbounded Domain Problem
Multigrid Algorithm for the Coupling System Model problem natural boundary reduction
2012/7/31
In this paper, some V-cycle multigrid algorithms are presented for the coupling system arising from discretization the Dirichlet exterior problem by coupling the natural boundary element method and n...
Cascadic Multigrid for Finite Volume Methods for Elliptic Problems
Elliptic Problems Cascadic Multigrid
2012/7/31
In this paper, some effective cascadic multigrid methods are proposed for solving the large scale symmetric or nonsymmetric algebraic systems arising
from the finite volume methods for second order e...