J4 ›› 2012, Vol. 50 ›› Issue (01): 11-14.
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LIU Bo, LIU Fengnan
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A method of multiple polynomial preconditioning technique for positive definite symmetric linear equations was proposed based on the na ture of the quadratic function. It was proved that the method can make condition number better so as to improve operation efficiency. On the basis, a method of approximate solution of equations was designed, and the theoretical results and numerical results show the effectiveness of the method.
Key words: preconditioning technique, condition number, polynomial preconditioning technique
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LIU Bo, LIU Fengnan. A Method about Polynomial Preconditioning Technique[J].J4, 2012, 50(01): 11-14.
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http://xuebao.jlu.edu.cn/lxb/EN/Y2012/V50/I01/11
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