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CONVERGENCE OF THE HIPTMAIR-XU PRECONDITIONER FOR MAXWELL'S EQUATIONS WITH JUMP COEFFICIENTS (I): EXTENSIONS OF THE REGULAR DECOMPOSITION 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2021, 卷号: 59, 期号: 5, 页码: 2500-2535
作者:  Hu, Qiya
收藏  |  浏览/下载:111/0  |  提交时间:2022/04/02
Maxwell's equations  regular decomposition  stability  Nedelec elements  
A NOVEL LEAST SQUARES METHOD FOR HELMHOLTZ EQUATIONS WITH LARGE WAVE NUMBERS 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2020, 卷号: 58, 期号: 5, 页码: 3091-3123
作者:  Hu, Qiya;  Song, Rongrong
收藏  |  浏览/下载:141/0  |  提交时间:2021/01/14
Helmholtz equations  inhomogeneous media  large wave number  auxiliary unknowns  least squares  error estimates  preconditioner  
A SADDLE POINT APPROACH TO THE COMPUTATION OF HARMONIC MAPS 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2009, 卷号: 47, 期号: 2, 页码: 1500-1523
作者:  Hu, Qiya;  Tai, Xue-Cheng;  Winther, Ragnar
收藏  |  浏览/下载:101/0  |  提交时间:2018/07/30
harmonic maps  nonlinear constraints  saddle point problems  error estimates  
Optimal superconvergence results for delay integro-differential equations of pantograph type 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2007, 卷号: 45, 期号: 3, 页码: 986-1004
作者:  Brunner, Hermann;  Hu, Qiya
收藏  |  浏览/下载:109/0  |  提交时间:2018/07/30
volterra integro-differential equation  vanishing delays  proportional delays  pantograph equation  collocation solutions  optimal order of superconvergence  
Optimal superconvergence orders of iterated collocation solutions for volterra integral equations with vanishing delays 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2005, 卷号: 43, 期号: 5, 页码: 1934-1949
作者:  Brunner, H;  Hu, QY
收藏  |  浏览/下载:97/0  |  提交时间:2018/07/30
delay integral equation  proportional delays  collocation method  iterated collocation  solution  optimal order of superconvergence  
Efficient solvers for saddle-point problems arising from domain decompositions with Lagrange multipliers 期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2004, 卷号: 42, 期号: 3, 页码: 905-933
作者:  Hu, QY;  Shi, ZC;  Yu, DH
收藏  |  浏览/下载:111/0  |  提交时间:2018/07/30
domain decomposition  nonmatching grids  mortar element  Lagrange multiplier  weighted saddle-point problem  preconditioner  condition number