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GENERALIZED INVERSE RATIONAL EXTRAPOLATION METHODS FOR MATRIX SEQUENCES
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作者 Li Chunjing(Dept.of Math .,tongji Uniersity/Math ,shanghai University,Shanghai 200331,PRC)Gu Chuanqing(Dept.of Math.,Shanghai University,Shanghai 200436,PRC) 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2000年第S1期86-90,共5页
Assume that a convergent matrix sequence{A<sub>n</sub>}:A<sub>n</sub>→A(n→∞), A<sub>n</sub>,A∈C<sup>3×3</sup>.We want to form a new matrix sequence {H<sub&... Assume that a convergent matrix sequence{A<sub>n</sub>}:A<sub>n</sub>→A(n→∞), A<sub>n</sub>,A∈C<sup>3×3</sup>.We want to form a new matrix sequence {H<sub>n</sub>}, derived from {A<sub>n</sub>}, which has also A aslimit and whose convergence is faster than the of {A<sub>n</sub>}. Three rational extrapolation meth-ods for accelerating the convergence of matrix sequences {A<sub>n</sub>} are presented in this paper.The underlying methods are based on the generalized inverse for matrices which is 展开更多
关键词 MATH GENERALIZED INVERSE RATIONAL EXTRAPOLATION methodS FOR matrix SEQUENCES RATIONAL
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The Ground and Excitation Levels of the Trimer
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作者 You Pu(Department of Physics, Wuhan University, Wuhan 430072,China) 《Wuhan University Journal of Natural Sciences》 CAS 1998年第2期163-164,共2页
The ground and excited levels of the trimer (4He)3 are obtained theoretically by solving the 2-D Faddeev integral equation in the momentum space. In solving the equation, the direct matrix inversion method (I. M.) is ... The ground and excited levels of the trimer (4He)3 are obtained theoretically by solving the 2-D Faddeev integral equation in the momentum space. In solving the equation, the direct matrix inversion method (I. M.) is used instead of the iteration and Pade approximate method. The new HFD-B Aziz potential ν is used in the calculation. 展开更多
关键词 TRIMER Faddeev equation matrix inversion method
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