УК гд а Уж × в
УК гд а Уж × в
УК гд а Уж × в
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º1<br />
−3<br />
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3<br />
<strong>×</strong>Ù<strong>×</strong>ÙиØÏÝÐÚØÓÖρ<strong>×</strong>Ø<strong>×</strong><strong>×</strong><br />
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4<strong>×</strong>ÚÒÝ<br />
1/4 1/2<br />
ÌÏÝÐÚØÓÖ<strong>×</strong>ÚÒÝρ =<br />
)<strong>×</strong>ØÓÜØÖÖÓÙÔÒÖØÝØÖØÓÒ<strong>×</strong>ÝÐÐÖÐ<strong>×</strong>ÑÔÐÖÓÓØ<strong>×</strong><br />
1/2 1<br />
ÌÜØÒ˹ÙÐØÝÖÓÙÔÓÖN =<br />
2ÑØÖÜ<strong>×</strong>ÓÐÐÓÛ<strong>×</strong><br />
W(A (4) ) ⋊ D (2)<br />
ÛÖW(A (4)<br />
x mÒD (2)<br />
ÓÒØÖÓÓØ<strong>×</strong>x mÛÖØØÒ<strong>×</strong>2 ´º¾µ<br />
<strong>×</strong><br />
( ) (<br />
1 −1 1 −1<br />
γ : x m −→ · x m ·<br />
)Ì,<br />
Ð<strong>×</strong>Ó¸ØÛÐÐ<strong>×</strong>ÓØÏÝÐÑÖÓØÃÅÄ<strong>×</strong>ÙÔÖÐÖ˜G4Û<strong>×</strong><strong>×</strong>ØÙ ´º¾µ<br />
4 −3 4 −3<br />
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( ) (<br />
−1 1 −1 1<br />
δ : x m −→ · x m ·<br />
)Ì.<br />
4<strong>×</strong>ÓÙÒÝÒÒÒØÒÙÑÖÓ<strong>×</strong>ѹÖÐ<strong>×</strong><strong>×</strong>ØÃÅÄ<br />
0 1 0 1<br />
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2<strong>×</strong>ÔÔÖÓ<strong>×</strong>ÐÑØÔÓÒØÓØÒÒØ<strong>×</strong>ÕÙÒÓ ÑÖÓÖN =<br />
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〈ρ, x m 〉 = −1 , ∀m .<br />
(<br />
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∞<strong>×</strong>ØÒÒعÑÒ<strong>×</strong>ÓÒÐÖÐÖÓÙÔÒÖØÝγÒδÛØ<br />
∞ ,
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