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A Multi-level Correction Scheme for Eigenvalue Problems
Eigenvalue problem multi-level correction scheme finite element method multi-space multi-grid
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2011/8/23
Abstract: In this paper, a new type of multi-level correction scheme is proposed for solving eigenvalue problems by finite element method. With this new scheme, the accuracy of eigenpair approximation...
An O(k2+kh2+h2) Accurate Two-level Implicit Cubic Spline Method for One Space Dimensional Quasi-linear Parabolic Equations
Quasi-Linear Parabolic Equation, Implicit Method, Cubic Spline Approximation, Diffusion-Convection Equation, Singular Equation, Burgers’ Equation, Reynolds Number
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2013/1/30
In this piece of work, using three spatial grid points, we discuss a new two-level implicit cubic spline method of O(k2 + kh2 + h4) for the solution of quasi-linear parabolic equation , 0< x <1, t > 0...
Level lowering modulo prime powers and twisted Fermat equations
Modular forms level lowering Diophantine equations
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2010/11/26
We discuss a clean level lowering theorem modulo prime powers for weight 2 cusp forms. Furthermore, we illustrate how this can be used to completely solve certain twisted Fermat equations axn + byn + ...
TOWARDS A COST-EFFECTIVE ILU PRECONDITIONER WITH HIGHER LEVEL FILLS
minimum discarded ll(MDF) incomplete MDF threshold MDF minimum up-dating matrix(MUM) incomplete factorization matrix ordering preconditioned conjugate gradient high-order ILU factorization
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2007/3/29
A recently proposed Minimum Discarded Fill (MDF) ordering (or pivoting) technique is eective in nding high quality ILU (e) preconditioners, especially for problems arising from unstruc-tured nite elem...