c c
c
Y Y m
Ô
! " #
m
$ % & '
&
()* +,-*)- +.,)/- Ô. )+) 0 1 0-" * " +,)/-"
+-Ô),2" -* 0 . )( ( Ô. )+) 0 ' Ô ) - 1 ./ ,.(! % 3
& 0 " ( '-*, 0 +)Ô) ,-
& 3 45 " #
()* +,-*)- +.,)/- +)- 0 ()* +,-* (
-*6 )7 +)8 1 * 0 0 6 0 ( 0 ()* +,-*)- +.,)/- +)- 0 0)+(-#
6.)00 *Ô- 6 00 6-" / ** , ! 3 3 ( 0 6 (-
( *, Ô , 0
9 ()* +,-*)- +.,)/- Ô. )+) 0 (
( *, Ô ,- ( " " 0/ (-* 6* 0) 7
-* 0 . )( ( +)- 0 :6 ;!
m
.* Ô , +)- ( 0-" ()* +,-*)-" +.,)/-" 0-+ 0 "
<. +- '-*Ã&#x201D; 0 ",*.+,.* -0=,)+ ( :6 ;
( *, Ã&#x201D; ,-
( " " 0/ (-*#
Ã&#x201D; Y m
6* 0) 7 -* 0
. )( ( +)- 0 :6 ;# 1 0
%
0 + > &
! &
.* Ã&#x201D; , , * ()* +,-*)-"
+.,)/-" +
Ã&#x201D; #
Y m
+ ( 3 ()* +,-*)-
+.,)/- Ã&#x201D;. )+) 0 +-Ã&#x201D;),2 ( .* Ã&#x201D; , +)8
( 0 6 (- ( *, Ã&#x201D; , 0! 3 0)( * " ( 0 "
+-Ã&#x201D;. )( ( "
$ $ 3
+ ! & & (
& #
m
( & ? ()* +,)/?" & ()* +,-*)-"
+.,)/-" ( 0 " +-Ã&#x201D;. )( ( " &
" ! + * ,
@
&
+
Ã&#x201D; #
m
) & + ! 0 !
0
&
&
- @
6* 0) 7 -* 0 . )( ( +)- 0 :6 ;#
Y m + + 3
6* 0) 7 -*
0 . )( ( +)- 0 :6 ;# m Ã&#x201D; +* ()>)0)( ( + Ã&#x201D;
6* 0) 7 -* 0 . )( ( +)- 0 :6 ;!
.* Ã&#x201D; , * ()* +,-*)-" +.,)/-" @
()* +,-*)- +.,)/- Ã&#x201D;. )+) 0
6 :6 ; m + !
, @ , !
+
0 & & 0 0, ( 6*
0) 7 -* 0 . )( ( +)- 0 :6 ;#