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| Fast solution of block skew circular preconditioned equations |
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BAO Wen-di, LI Wei-guo
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(Department of Mathematics and Computational Science in China University of Petroleum, Dongying 257061 ’ Shandong Province 1 China)
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| Abstract: |
| A new fast Hartley transform (FHT) and fast W transform { FWT) algodlhni fur solving block skew circuit preconditioned equations of order mn was obtained. Its arithmetic complexity is 0( mrelog^ ( mn.) . Especially, when m = 1，the operation cost of the new algorithm is about — of tke preconditioned iterative method. |
| Key words: block skew circular matrix precanditioned equations fast W transform algorithm |
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