搜索结果: 1-15 共查到“理学 multigrid”相关记录20条 . 查询时间(0.156 秒)
Experimental validation of single-iteration multigrid wavefront reconstruction at the Palomar Observatory
wavefront reconstruction single-iteration multigrid
2015/6/19
Single-iteration multigrid wavefront reconstruction schemes (SIMG) were implemented and validated on the adaptive optics system at the Hale 5.1 meter telescope at the Palomar Observatory. Results indi...
A Nonlinear Multigrid Steady-State Solver for Microflow
Multigrid Boltzmann equation ES-BGK model NRxx method
2014/10/10
We develop a nonlinear multigrid method to solve the steady state of microflow,which is modeled by the high order moment system derived recently for the steadystate Boltzmann equation with ES-BGK coll...
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 methods for two-player zero-sum stochastic games
Multigrid methods two-player zero-sum stochastic games Optimization and Control Numerical Analysis
2011/8/30
Abstract: We develop a fast numerical algorithm for large scale zero-sum stochastic games with perfect information, which combines policy iteration and algebraic multigrid methods. This algorithm can ...
We present an adaptive multigrid Dirac solver developed for Wilson clover fermions which offers order-of-magnitude reductions in solution time compared to conventional Krylov solvers. The solver incor...
We present an adaptive multigrid Dirac solver developed for Wilson clover fermions which offers order-of-magnitude reductions in solution time compared to conventional Krylov solvers. The solver incor...
We present an adaptive multigrid Dirac solver developed forWilson clover fermions which offers
order-of-magnitude reductions in solution time compared to conventional Krylov solvers. The
solver inco...
$P_1$-nonconforming Quadrilateral Finite Volume Element Method and Its Cascadic Multigrid Algorithm
2007/12/12
In this paper, we discuss the finite volume element
method of $P_1$-nonconforming quadrilateral element for elliptic
problems and obtain optimal error estimates for general
quadrilateral partition....