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7<br />

Ê<strong>×</strong>ÙÐØ<strong>×</strong>ÓØÌ<strong>×</strong><strong>×</strong><br />

ÁÒØ<strong>×</strong>ÔØÖÛÐ<strong>×</strong>ØØ<strong>×</strong>ØÓÖ<strong>×</strong>ÙÐØ<strong>×</strong>ÒØ<strong>×</strong>Ø<strong>×</strong><strong>×</strong>ØØÖÙØÓØÙØÓÖÓØ Ø<strong>×</strong><strong>×</strong>¸ÓØÒ<strong>×</strong>ÔÖØÓÛÓÖÓÒÛØÓÐÐÓÖØÓÖ<strong>×</strong>ºÌ<strong>×</strong>Ö<strong>×</strong>ÙÐØ<strong>×</strong>ÚÒÔÖ<strong>×</strong>ÒØ Ò¸¸½¼℄ºÏÐ<strong>×</strong>ØØÖ<strong>×</strong>ÙÐØ<strong>×</strong>ÐÓÒÛØØÓÒØÜØÒÛØÝÛÖÛÓÖº<br />

ÛÓ<strong>×</strong>ÏÝйùÓÖÖ<strong>×</strong>ÒÓÑÒØÓÖÓÖÑÙÐÚ<strong>×</strong>Ö<strong>×</strong>ØÓÒÙ<strong>×</strong>¹ØÛÓ<br />

N¸ÛÖ<strong>×</strong>ÓÛÒ<br />

•ÁÒ℄ØÜ<strong>×</strong>ØÒÓÑÐÝÓÃÅÄ<strong>×</strong>ÙÔÖÐÖ<strong>×</strong>¸G ÒÛØØÛÓÖÓÖ¸ÎÖÐÒ¸ÒÎÖÐÒ½℄ØÛ<strong>×</strong>ÓÙÒÝÂØÖÒ ÄØÙ<strong>×</strong>ÖÝÖÐиÖÓÑØÔÖÚÓÙ<strong>×</strong>ÔØÖ<strong>×</strong>¸ØÓÒØÜØÓØÓÚÖ<strong>×</strong>ÙÐغËØÖع ÑÓÙÐÖÓÖÑØÐÚÐN¸∆ k/2 (Z)¸ÓÖ(N,<br />

<strong>×</strong>ÙÔÖ<strong>×</strong>ÝÑÑØÖ<strong>×</strong>ØÖÒØÓÖ<strong>×</strong>ÒÓÙÖ<strong>×</strong>Ô¹ØÑÑÒ<strong>×</strong>ÓÒ<strong>×</strong>℄¸Û<strong>×</strong>ÚÒÝÒÙ<strong>×</strong>¹<br />

ÃÅÄ<strong>×</strong>ÙÔÖÐÖºÁÒ℄Ø<strong>×</strong>Û<strong>×</strong>ÜØÒØÓØÑÐÝÓÑÓÙÐÖÓÖÑ<strong>×</strong> <strong>×</strong>ÕÙÖÖÓÓسÓØÑÓÙÐÖÓÖÑÒÕÙ<strong>×</strong>ØÓÒÔÔÖ<strong>×</strong><strong>×</strong>ØÒÓÑÒØÓÖÒØØÝÓ<br />

(Z)¾℄ºÁØÛ<strong>×</strong>Ð<strong>×</strong>ÓÓ<strong>×</strong>ÖÚÝÎÎØØØ ËÒØØØÒÖØÒÙÒØÓÒÓØÒÖ<strong>×</strong>Ó1<br />

ÓÒ<strong>×</strong>ØÖÙØÝÂØÖÒËÒºÑÐÝÓÃÅÄ<strong>×</strong>ÙÔÖÐÖ<strong>×</strong>ÛÖÓÒ<strong>×</strong>ØÖÙظ<br />

4¹ÈË<strong>×</strong>ØØ<strong>×</strong>ÒÐ<strong>×</strong><strong>×</strong>ÓN =<br />

ÐÓÒØÐÒ<strong>×</strong>ÓØÛÓÖÝÖØ<strong>×</strong>ÒÓÒÆÙÐÒ℄¸ÛÓ<strong>×</strong>ÒÓÑÒØÓÖÒØØ<strong>×</strong><br />

ØÛÓËÐÑÓÙÐÖÓÖÑ<strong>×</strong>¸ÒÓؘΦk<br />

ÚÒÝØÖØÒÑØÖÜ<br />

2¹ÓÖÖØÓÒ<strong>×</strong>ØÓØ<strong>×</strong>ØÖÒØÚØÓÒºÐÐØÃÅÄ<strong>×</strong>ÙÔÖÐÖ<strong>×</strong>Ö (Z)ÒÖØÒ ÛÖÚÒÝ<strong>×</strong>ÕÙÖÖÓÓØ<strong>×</strong>¸∆ k/2 (Z)¸ÓØÒÙ<strong>×</strong>¹ØÛÓÑÓÙÐÖÓÖÑ<strong>×</strong>Φ ØR<br />

(5, 2)º<br />

)Ò<br />

k) = (1, 10)¸(2, 6), (3, 4)¸(4, 3 2<br />

k<br />

4<br />

⎛ ⎞<br />

2 −2 −2<br />

⎜ ⎟<br />

A 1,II ≡ ⎝−2<br />

2 −2⎠ .<br />

−2 −2 2<br />

´º½µ ½

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