J4 ›› 2011, Vol. 46 ›› Issue (12): 13-18.

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The optimal parameters of PSD method for rank deficient linear systems

LIU Xiao-guang,  CHANG Da-wei*   

  1. College of Mathematics and Information Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China
  • Received:2010-09-27 Online:2011-12-20 Published:2011-12-24

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Abstract:

Combining the geometry and the algebra,the optimal parameters and the optimal spectral radius of PSD method for rank deficient linear systems Ax=b are acquired,where A∈Cm×nr and r

Key words: rank deficient linear systems; PSD iterative method; the optimal parameters; the optimal spectral radius

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