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A( (α α α+ =

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( )A( A( ( A( (α β α β β α+ = + ( )A( A( ( A( (α β α β β α− = −

( )( ( ( A( (α β α β β α+ = + ( )( ( ( A( A(α β α β α β− = −

( )1(1( 1(

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( ) ( )[ ]( ( ( (α β α β α β= + + −

( ) ( )[ ]A( ( A( A(α β α β α β= + + −

( )( A( ( A(α α α α± = ±

( )7%A( / / /= + + ( )7%( / / /= + −

7%1( //

/=

+−

7%A( 7%( 7%1(/ /

/

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7%( //

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7%( 7%A( 7%1(/ /

/

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7%1( 7%A( 7%( 7%(//

/

/

/ /=

−=

−=

( ) / / /= − −

( ) / / /= + −

A( / /= A( / /= / // = +

( / /= (/ /= / //− = −

1( / /= 1( / /= 7%A( / /=

( ) ( A(/ / / + = + 7%( / /= −

( ) ( A(/ / / + = − 7%1( / //

/= =

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