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- W988175655 abstract "In this paper, a mistake in ”The fast fourier algorithm for the inverse of R-Block circulant matrices” is pointed out. It can prove that the quantity of all mth root of r-circulant matrix which are still r-circulant matrices is m, and a fast algorithm for calculating all mth root of r-circulant matrix which are still r-circulant matrices is gived. It can prove that the computation time complexity is O(nlog2n) for calculating one mth root of r-circulant matrix and which is O(nm(superscript n)) for calculating all by using FFT. At the same time, an algorithm for computing the principal square root of matrix is gived." @default.
- W988175655 created "2016-06-24" @default.
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- W988175655 date "2007-01-15" @default.
- W988175655 modified "2023-09-27" @default.
- W988175655 title "对文《R-循环分块矩阵求逆的快速傅里叶算法》的注记" @default.
- W988175655 hasPublicationYear "2007" @default.
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