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In information theory, the bar product of two linear codes ''C''2 ⊆ ''C''1 is defined as : where (''a'' | ''b'') denotes the concatenation of ''a'' and ''b''. If the code words in ''C''1 are of length ''n'', then the code words in ''C''1 | ''C''2 are of length 2''n''. The bar product is an especially convenient way of expressing the Reed–Muller RM (''d'', ''r'') code in terms of the Reed–Muller codes RM (''d'' − 1, ''r'') and RM (''d'' − 1, ''r'' − 1). The bar product is also referred to as the | ''u'' | ''u''+''v'' | construction or (''u'' | ''u'' + ''v'') construction. ==Properties== 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「Bar product」の詳細全文を読む スポンサード リンク
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