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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Perfect matrix ： ウィキペディア英語版 Perfect matrix In mathematics, a perfect matrix is an ''m''-by-''n'' binary matrix that has no possible ''k''-by-''k'' submatrix K that satisfies the following conditions:〔D. M. Ryan, B. A. Foster, (''An Integer Programming Approach to Scheduling'' ), p.274, University of Auckland, 1981.〕 * ''k'' > 3 * the row and column sums of K are each equal to ''b'', where ''b'' ≥ 2 * there exists no row of the (''m'' − ''k'')-by-''k'' submatrix formed by the rows not included in K with a row sum greater than ''b''. The following is an example of a K submatrix where ''k'' = 5 and ''b'' = 2: ::$$ \begin 1 & 1 & 0 & 0 & 0 \\ 0 & 1 & 1 & 0 & 0 \\ 0 & 0 & 1 & 1 & 0 \\ 0 & 0 & 0 & 1 & 1 \\ 1 & 0 & 0 & 0 & 1 \end. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Perfect matrix」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.