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Ö¤ÕâÊǸöAbelȺÈÝÒ×°É¡£Ö¤ÎÞÏÞ£¬Èç¹ûtheta1,theta2ʽ×ÓÖµÒ»Ñù£¬ÍƳötheta1-theta2=2k¦Ð, È»ºóÓÉ(0,2¦Ð)ÓÐÀíÊýÎÞÏÞ¸ö¾ÍµÃµ½ÁË ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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ͬlzÒ»Æð¸´Ï°Ò»Ï»ù±¾¸ÅÄî ({e^{i*theta},theta\in Q},*) ÊÇAbelian G£º ·â±Õ e^{i*theta1}*e^{i*theta2}=e^{i*(theta1+theta2)}, theta1+theta2ÈÔΪÓÐÀíÊý. ½áºÏÂÉ(e^{i*theta1}*e^{i*theta2})*e^{i*theta3}=e^{i*theta1}*(e^{i*theta2}*e^{i*theta3})=e^{i*(theta1+theta2+theta3)}. 0ԪΪ1£¬¼´theta=0£¬e^{i*theta}*1=e^{i*theta}. e^{i*theta}Óëe^{i*(-theta)}»¥ÎªÄæÔª£¬ÒòΪe^{i*theta}*e^{i*(-theta)}=1, Abelian e^{i*theta1}*e^{i*theta2}=e^{i*(theta1+theta2)}=e^{i*(theta2+theta1)}=e^{i*theta2}*e^{i*theta1}. |

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