Matrix Decomposition and Calculation of Chrestenson Spectra |
Received:August 03, 2000 |
Key Words:
discrete Fourier transform Chrestenson spectra sparse matrix fast algorithm.
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Fund Project:Supported by the National Natural Science Foundation of China (90104034), the 863 Program (2002AA141020) and the Guangdong Provincial Natural Science Foundation (990336) |
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Abstract: |
Calculation of a variation of discrete Fourier transform.Chrestenson spectraof functions of n indeterminates over integer modulo m(composite integer),is con-sidered.Based on sparse matrix decomposition,two fast algorithms with complexity O(mnn∑ri=1pi) are given to calculate the Chrestenson spectra,where p1p2…pr is theprime factor decomposition of m. |
Citation: |
DOI:10.3770/j.issn:1000-341X.2003.01.004 |
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