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检索条件"主题词=Cascadic multigrid method"
24 条 记 录,以下是1-10 订阅
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cascadic multigrid method FOR THE MORTAR ELEMENT method FOR P1 NONCONFORMING ELEMENT
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Journal of Computational Mathematics 2005年 第4期23卷 425-440页
作者: Chun-jia Bi Dan-hui Hong Department of Mathematics Yantai University Shandong 264005 China Institute of Mathematics Fudan University Shanghai 200433 China
In this paper, we consider the cascadic multigrid method for the mortar P1 nonconforming element which is used to solve the Poisson equation and prove that the cascadic conjugate gradient method is accurate with optim... 详细信息
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cascadic multigrid method FOR ISOPARAMETRIC FINITE ELEMENT WITH NUMERICAL INTEGRATION
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Journal of Computational Mathematics 2004年 第1期22卷 123-136页
作者: Chun-jiaBi Li-kangLi DepartmentofMathematics YantaiUniversityYantai264005China DepartmentofMathematics FudanUniversityShanghai200433China
The purpose of this paper is to study the cascadic multigrid method for the secondorder elliptic problems with curved boundary in two-dimension which are discretized by the isoparametric finite element method with num... 详细信息
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cascadic multigrid method for P1-nonconforming quadrilateral element
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JOURNAL OF NUMERICAL MATHEMATICS 2008年 第3期16卷 237-248页
作者: Wang, C. Huang, Z. Li, L. Tongji Univ Dept Math Shanghai 200092 Peoples R China Tongji Univ Chinese German Coll Shanghai 200092 Peoples R China Fudan Univ Dept Math Shanghai 200433 Peoples R China
In this paper, a cascadic multigrid method for P-1-nonconforming quadrilateral finite element approximation of second order elliptic problem is studied. A new intergrid transfer operator is constructed to connect the ... 详细信息
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An efficient red-black skewed extrapolation cascadic multigrid method for two-dimensional Poisson equation
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COMPUTATIONAL & APPLIED MATHEMATICS 2024年 第1期43卷 1-22页
作者: Xu, Yuan Lei, Siu-Long Sun, Hai-Wei Univ Macau Dept Math Macau Peoples R China
We present a red-black skewed extrapolation cascadic multigrid (SkECMG) method to solve the Poisson equation in two dimensions based on the modified standard and skewed five-point finite difference discretization. Wit... 详细信息
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A subspace cascadic multigrid method for mortar elements
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COMPUTING 2002年 第3期69卷 205-225页
作者: Braess, D Deuflhard, P Lipnikov, K Ruhr Univ Bochum Fac Math D-44780 Bochum Germany Konrad Zuse Zentrum Berlin D-14195 Berlin Germany Free Univ Berlin D-14195 Berlin Germany Univ Houston Dept Math Houston TX 77204 USA
A cascadic multigrid (CMG) method for elliptic problems with strong material jumps is proposed and analyzed. Non-matching grids at interfaces between subdomains are allowed and treated by mortar elements. The arising ... 详细信息
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A new extrapolation cascadic multigrid method for three dimensional elliptic boundary value problems
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JOURNAL OF COMPUTATIONAL PHYSICS 2017年 344卷 499-515页
作者: Pan, Kejia He, Dongdong Hu, Hongling Ren, Zhengyong Cent S Univ Sch Math & Stat Changsha 410083 Hunan Peoples R China Tongji Univ Sch Aerosp Engn & Appl Mech Shanghai 200092 Peoples R China Hunan Normal Univ Coll Math & Comp Sci Minist Educ China Key Lab High Performance Comp & Stochast Informat Changsha 410081 Hunan Peoples R China Cent S Univ Sch Geosci & Infophys Changsha 410083 Hunan Peoples R China Cent S Univ Minist Educ Key Lab Metallogen Predict Nonferrous Met & Geol Changsha 410083 Hunan Peoples R China
In this paper, we develop a new extrapolation cascadic multigrid method, which makes it possible to solve three dimensional elliptic boundary value problems with over 100 million unknowns on a desktop computer in half... 详细信息
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On the convergence of a cascadic multigrid method for semilinear elliptic problem
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APPLIED MATHEMATICS AND COMPUTATION 2004年 第2期159卷 407-417页
作者: Zhou, SZ Hu, HX Hunan Univ Dept Appl Math Changsha Hunan Peoples R China
A cascadic multigrid method for semilinear elliptic problem is analysed. It has been proved that the algorithm has optimal order of convergence in energy norm and quasi-optimal computational complexity under more gene... 详细信息
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A cascadic multigrid method for a kind of semilinear elliptic problem
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NUMERICAL ALGORITHMS 2011年 第2期58卷 143-162页
作者: Yu, Haixiong Zeng, Jinping Hunan Univ Coll Math & Econometr Changsha 410082 Hunan Peoples R China Dongguan Univ Technol Coll Comp Dongguan 523000 Guangdong Peoples R China
In this paper, we analyze a cascadic multigrid method for semilinear elliptic problems in which the derivative of the semilinear term is Holder continuous. We first investigate the standard finite element error estima... 详细信息
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A modulus-based cascadic multigrid method for elliptic variational inequality problems
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NUMERICAL ALGORITHMS 2022年 第4期90卷 1777-1791页
作者: Wang, Yan Li, Chenliang Shanghai Inst Technol Coll Sci Shanghai 201418 Peoples R China Guilin Univ Elect Technol Guangxi Coll & Univ Key Lab Data Anal & Computat Sch Math & Comp Sci Guilin Peoples R China
In this paper, by using a modulus-based matrix splitting method as a smoother, a new modulus-based cascadic multigrid method is presented for solving elliptic variational inequality problems. Convergence of the new me... 详细信息
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An Edge-based cascadic multigrid method for H(curl) problems
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NUMERICAL ALGORITHMS 2024年 1-21页
作者: Wang, Jinxuan Pan, Kejia Wu, Xiaoxin Cent South Univ Sch Math & Stat HNP LAMA Changsha 410083 Peoples R China
An efficient extrapolation cascadic multigird (EXCMG) method is developed to solve large linear systems resulting from edge element discretizations of 3D H(curl)\documentclass[12pt]{minimal} \usepackage{amsmath} \usep... 详细信息
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