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(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H

(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H

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¢¡¤£¦¥ ¡ §<br />

¤£ ¡¢¡£¡¢¤¦¥ ¡¢¡§¡©¨<br />

¡ ¨ § B =<br />

A =<br />

0 0 0<br />

1 0 3<br />

0 4 2<br />

C =<br />

1 0 3α<br />

§ o ¨ ¢<br />

BC, (BC) 2 , (BC) 3 .<br />

0<br />

1<br />

4<br />

α<br />

2<br />

0 0 −α<br />

α ∈<br />

<br />

IR<br />

m ∈ IN m ≥ 3, (BC) m = 03×3.<br />

a 0 0<br />

b a 0<br />

c b a<br />

a b c ¢ <br />

(I3 − BC) I3 + BC + (BC) 2 = I3.<br />

A 2 <br />

T<br />

AA .<br />

T<br />

AA <br />

2 = A + 2b 2 + c 2 <br />

.<br />

A BC<br />

¡ ¨ A B C n A B ¨ <br />

<br />

¡ ¨ Aα<br />

(A − In) A −1 C + B (AB) −1 C = C<br />

<br />

=<br />

1 −1 −1<br />

1 −α −α<br />

−1 1 α + 1<br />

<br />

, α ¡

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