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[期刊论文] 作者：Yifen Ke,Changfeng Ma,
来源：计算数学（英文版） 年份：2017
In this paper,we present two alteating direction methods for the solution and best approximate solution of the Sylvester-type matrix equation AXB + CXTD =E aris...
MODIFIED ALTERNATING POSITIVE SEMIDEFINITE SPLITTING PRECONDITIONER FOR TIME-HARMONIC EDDY CURRENT M
[期刊论文] 作者：Yifen Ke,Changfeng Ma,
来源：计算数学（英文版） 年份：2021
In this paper,we consider a modified alternating positive semidefinite splitting precon-ditioner for solving the saddle point problems arising from the finite element discretization of the hybrid formulation of the time-harmonic eddy curren......
A new alternating positive semidefinite splitting preconditioner for saddle point problems from time
[期刊论文] 作者：Yifen KE,Changfeng MA,Zhiru RE,
来源：黑龙江科技学院学报 年份：2004
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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