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2£©Éè C={[x1,x2,x3,x4,x5]|  |xi|<=1,i=1,2,3,4,5}Ϊ5άÁ¢·½Ì壬¼ÙÉèGÊÇËùÓÐCµ½CÖеı£¾àÀëÏßÐԱ任¹¹³ÉµÄȺ£¬·ÖÎöȺµÄ½×£¨Íƹ㵽nά£©
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hank612

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

google "group theory kronecker theorem"
µÃµ½
http://www.math.tifr.res.in/~eghate/kw.pdf
¹ØÓÚThe Kronecker-Weber Theorem

http://mathworld.wolfram.com/KroneckerDecompositionTheorem.html
¹ØÓÚKronecker basis theorem
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We_must_know. We_will_know.
3Â¥2013-12-30 14:23:29
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hank612

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math2000: ½ð±Ò+15, ¡ïÓаïÖú, ·Ç³£¸Ðл£¡ 2013-12-30 12:52:43
1)Kronecker¶¨ÀíµÄÐðÊöÊÇʲô£¿ baiduû¸ø³ö¸úȺÂÛÓйص͍Àí¡£
2) ËÑ"n-cube automorphism group" µÃµ½µÄ£¬ ¿´¿´ÊÇ·ñÓÐÓã¿http://www.math.uga.edu/~lenny/R ... riteUps/ChenRev.pdf

ÎÒ¸öÈ˵ÄÀí½â£¬²»ÖªµÀ¶Ô²»¶Ô¡£n-cube µÄ¶¥µãÊÇ(a1,...,an), ai ȡֵÕý¸º1, Á½¸ö¶¥µãÏàÁÚµ±ÇÒ½öµ± n-1¸öλÖÃÊý×ÖÏàͬ£¬Ê£ÏÂÒ»¸öλÖÃÒ»ÕýÒ»¸º¡£
ËüµÈͬÓÚ(b1,...,bn), bi=0 or 1£¬ Á½¶¥µãÏàÁÚµ±ÇÒ½öµ± Hamming ¾àÀëΪ1.
Automorphism group=( Z2^n °ëÖ±»ýSn ) ºÜºÃ¿Ì»­£¬Sn Öû»×÷Ó㬠n¸öZ2, µÚi¸öZ2 ½«µÚi¸öλÖÃ0£¬1¶Ôµ÷£¬ÆäÓ಻¶¯¡£

3) G --> G/K ¼´¿É¡£
We_must_know. We_will_know.
2Â¥2013-12-30 02:21:17
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