(2) U UNIVERSITAT DE BARCELONA. B. . ! "# # # ! . . .
(3) . .
(4) . U. UNIVERSITAT DE BARCELONA. . B. . $% & '()* &+()* , $ ! $. # / - 0123. 4+) & 55+56) &+()* $ % + $'%),)**)7 4 $%*)7 ) *%* %)8*)7 )5%*5%4 $%5 )*4 ++) 4 & '%5 6 & %)9 4 . . . . . !. . . " #$%#.
(5) . . .
(6) & "'( ) *+ , + . . , -. " . ! . " '( . ". ,./),0 * 1 2 34 ( 2" . + . 2 2 . 5" 6 . 2 . . . . 7 . *+ , + . 2 ( 1- 8 . 9 7 -+. "- ( . . " #$%#. . . . . ! .
(7) .
(8) 476: 6" 6: 6 . . . .
(9) . .
(10) . .
(11) . .
(12) 6%: &4 . . .
(13) . .
(14) ; . '40 9; 7 7 ; <" <" <" = > ( . ;.7 7 ( = ? 7@6. . A"1 B . C 7 7. 6 ( 7 - . 1 7 . 4 " ! D ) ". C *+ , + . E1 . . ( . . " ( B 7 . . 4 " " "'( ) . *+ , + . ! . @. " ( - . 2 7. . *+ " . + . : (. . " . B 7 @6 . " 7 : " 7 6 . + :6 + 6 6 F . 7G G 6 : : . " 6 . . 7 ( . F " " 2 : " = (" ) D . " . :. . C . = A" 76. H " :. : ?6 " 6. ? 78 E6" 7 . G 2GA" 7 @ @ 7. . . 4 7 - I , ?4 " ' 4 . : E . . " . 4 " C . E = 9'9&9" . J 2 K . . A . +" . " 7 6. ;F . 6+: . : ? ( AF 7 6 =. ?: . " 7 . . ( A : 7 7 JF ; + ? 8 @4 . C A" = D 7 6 ( (. " C @ . ". 7 -.
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
(17) . ? E 7 @ D *+ , + 7 AO 1, ' ,O 2AFC " . C . : C ?( ". .8 . : . * " . . . . J,04;J9.H,4&;J*: ;J/ 76; ; . 7 6 ; F . : =2 6 + 7 :" 6 + 6 6 D 4. . : 7 6. . 7+ F = : D " : 7 . : :. K "76 + F ( : 7 6 / *940/ 4)9/ , I @6 7 . ( ,6; * . @6 ; F " " P+ : G G . "76 6 : . 9 @9. G G" )@4)9/FC (E " - =. G G". (B" . . 7 4 7@6 ( . -. .
(18) . % 9)'% 4 ) *%<&)4 . . .
(19) . .
(20) ! = . ,β ,. ,' ,F' , E ,& ,& , C . , E/E%. F4 '4 , 4. ' > . ( @ ( ( ( @ ( ( ,( %EC > V, WE E ( / I 4 ( > * /? 3 * / 3 M C , M C F 4 , , , , , 0 , , . > .: . '6 F F: F F F * H H H 9 9 9 & & & & &: X ' ' ' ) ): T ) )6 ) ) ( ) Y - % N . 4 2 4 ( ,I 8+ 4 ( ( . . --.
(21) . * ., .. .F .4 .4. .4E49E .4E9)E .4E .4E E)/ E .4E)/ E .4E .F4 .94 .! ."[ E/E%. , 6 2 N 2 ( 8 2 4 ( N 4 ( N .4 + @49E .4E49E @9) .4 + ? ".4E49EA .4E49E @ E)/ .4E49E )/ .4 2 .4 9 ( N . ( E! Z - . %. .#"[ #E/E%. - . % N ?+A. .[4. .4. E): H , #E',F4 )9. N ? A. ? ".4A. : . E):E&E ( M#"\E6- M - ',F4 # 4 !" ( ,?%E]A. 4), 494 49 4&9, 4 4/ 4'/ 49 49E. M 8 4 ( @2- - , @ 2 C 4 ( % - 4 9 2 4 ( @49. --.
(22) ! = . , , , (,& 9 )E9.0 YH. 6 F4 FH F. @ H, H H, H H9&9. H'&. H'&.E H)) H. M( ( 4 ( ( 9 ( ( ( , C @ ( ( , = B ? # $$ % 4 ( F 2 F . E ^ E6 Z. M 8 H H , H . ( +7 @ 26(+ . ( +7 @ 2 H'&. + ? "H'&.E49EA H H . ). 9,. 9, 94. 94 9 9,. 9E '/H 9). . ( @ ( M 8 . ( 9 ( . ( @ ( 4 9 , @ . + &. &.E49E &.E. . ( +7 ? "H'&.A &. + @49E &. + ? "&.E49EA --.
(23) . &/. &' ,&9 ,&9E)/ E. &+ 2 ? 2 1 A 0 2 C 9 2 2 C 4 ( ,&9 )/ . ?μA. . EH#. E ( . EH'&.?μEH'&.A _ Y./. &. E49 E49E9E EH'&.. 5 /EF,. $ ',F4 '.0 9 '' ''. ''. (8 . E ( EH'&. 4 4 C 1_ ) ? # $ 49 9E ( E49 EH'&. , 2 E BE +. ', '). 4 ( 0 2 ' 8 ' > 2 '2N '2 , C +( ( 2 E . * *7*. , 7 , 7 . --.
(24) ! = . % 0, 0 , 0'&. '' 0. M 0 , C + &.( ? "H'&.( A '2 0 2. 4 _ , E',F4 4. /E% 0_0. 0 2 : E M + ( ?@ 8 " A ( 4 ( ( . ( @- 2 ( 2 - % 2 2I _ . )( ) , )/ ) )4 ))0. ' . A Y. ) ( M ( 8 , ) ?6- A C 4 ( ( ) . . 4 ( Y . 8 . .C 8 . --.
(25) . . .
(26) . (& B . . .
(27) . .
(28) (. C. (& B 'C 5D *)' EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE *$(5+ E )&%5'**)7 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE F EE 6 ! EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 2 EE EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 2 E?E $G ; EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE H %`%H +7 %% %`#4 N > %% %``( E . . ?') A%#. %``%F 2%# %`a/ . %a. %`a%, 2 > %\ EIE > G ; EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE F %a%)8 7 N - 2 > %b %a#)8 7 ( 2 %a#%. C . %]. %]. %a##. ( 2%] %a#`C ( 2%c %a#a. ( +7 ?&.A%c . ( ?94.A%d . ( 6( %d . ( 1 ( . ?,.A%d. . ( 1 ( . ?9,.A%d. . ( 1- 2 ( 2 ?4.A#$ %a#\4 ( ?F4A#% 4 ( . ?#E',F4A#`. %a#b)8 7 7+7 #` 9 2#a ,. 1 2 C ?4&9,A#a. Y ?YA#a %a`)8 7 . 2 21 2#\ --.
(29) . %a`%. ( +7 1 2?H'&.A#\ %a`#4 ( . N ?.4A#]. %aa4 . ?A#d. %aa%9 2`$ 9 2 ?49A`$ 9 2 2 C %aa#,. ?,&9A`#. 1 . E0E G . ?A``. E EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE ?F. %b% 8 '8 `\ %b# - . %?/E%A4 ( ?,&A`b. %b`'2N ?''.A4 ( . ( . ?)4A`c. *$(5+ E B%**)7 ) $'%),)**)7 $$*EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE I , #%a\ *$(5+ ?E &J+)4) 451 $ % +)15,14 * 1'9 ) * 1)14 EEEEEEEEEEEEEEEEEEE F? , `%\] *$(5+ IE &J+)4) & '%5$K$)4 ) 451 $ % * 15,14 EEEEEEEEEEEEEEEEEEEEEEEEEEE 0F , a%bd , a#]d *$(5+ FE &J+)4) 451 $ % 1 4)1)14 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 2H , \%d` *$(5+ 0E % 4'+4 ) )4*'44)7 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE ? 0EE C# "# $$* EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE F b%%4. ( 2%$b b%#9,.%$c 0EE > 451 +)15,14 * 1'9 * 1)14 EEEEEEEEEEEEEEEEEEEEEEEEEEEE H b#%,&9E)/ E%%$ b##.4E.4E9)E%%% 0E?E &J+)4) & '%5$K$)4 ) 451 $ % * 15,14 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE F b`%9 (8 . C . . )/ .4E)/ E%%\. b`%% 8 /E% 6 b`#. 2/E% 6 b``, 2 . . %%\ %%d. 1,&%#b. 0EIE &J+)4) 451 $ % 1 4)1)14EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE L ba%/ 2 --. C . . %#c.
(30) (. C. ba#, C /E% %`$ ba`, C /E%6. %`#. baa, 2 . . 1,&%`a. 0EFE ! " EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE ?0 *$(5+ LE *5&*+'4)5&4 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE ?H *$(5+ 2E )+)56%,)EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE I? && B EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 0 0 , #%%b` 0 `%%b` 0 a%%b\ 0 a#%bb 0 \%%b]. ---.
(31) . .
(32) . 5D *)' . . .
(33) . .
(34) 5!M. &1= 1 7. 6 . + ( 2" . 1. . . 2 2 8 > . ( 8 7 ( 2 . C . " -+ . D 8 7 . 2 2 1 . 2" 1 ( N ?.4A1 . ?A. ,7 = 1 D 7 2 • D 1- 2 ( 2 2N ?''.A + ( . . 1 > . 2 2 = B. . ( ( . ( . N + . ?.4EA D 1- 2 ''." 1 . 1 (. 7. . 8 7 7+7 ( 2" . ( 1- 2 ( 2 ?4.A" ( 2 ( 1 ( • 4. ?9,.A. . + . 2 2 > . C 1 C C C ( . . 7 ( 2 . e 1 . 8 " N > . 87 1 C - 2 f. %?/E%A >. > . . E 4 2 2 C ?,&9A" -+ . . 2 /E%. E . 8 . 2 1 ( . 2 ( ?.4EA" 2 + 1 ?49EA E '( 2/E% E . N . . ( 1 2. /E% . . 6. . 2 2 8 /E% = B 1 . .4E)/ E" A.. .4E . ?.4E9)E 2 . . `.
(35) . E . 2 /E% . . 6. = B. . ( 1 2 . E . ? E49E9EA E , 2 . a. . + 7 . 1 ( ?,&A. 1 C .
(36) . *$(5+ E )&%5'**)7 . . .
(37) . .
(38) * . &13g 5 3.8 g7 5 2 = 8 7 1 ( . " 12 1 D 9 . 2 ," D 7 - " C - . D ( > ". " 1 ( 1 C 1C. ?0,AV%W& ( 27 V#W"7 "D (. . - ( " . D " 78 (8 " > 8 . + . 8 =. B. - - 7+ V`" aW ,-+" 1- 2 1 ( " . N . 8 > - . . . " . V\W4. " -. ". 2" - - "-- . + 7 ].
(39) ) . #. EE 6 &5 5+5. %&4*%)$5. 4 8 > 2 ( - - . . $%5 5. ). 7 . 7. - 6C . VbE]W 4 (- 1 " ( 2 = 8 > 7 1- . ( . 8N " - " , 7. N ". ( 2". . = - 7 ( D ( . 78 C. > C . N VcW4 #$αE C 7 . - 7f8 1 7. 7f8 ( E . . C. 2 . 8 > VdW ,7 . " 8 1 " V%W " . + . ?') A V%$W 1 (7 . > , = . > 10, - ( . 7 "D 78 7 1- . . & " . " 2 . 7 " . " . ". V%"bEdW. EE )5%*5%4 &1. . . 4, ?) * $" 9H" 6 ". : " ,A ( - + 7 = 1 D " 1 D . ( 2 8 V%%W 4 . ( 21 . ( . 1( . . ( 1 (C . 4 " 2" c. - = (. . ( . 2" 2 . " " 2.
(40) * . . 4 ( . . C " 8 > "7 E +( . " . -. 7 7 7 - 2 . . D . 1 . = "D 1 C . 8 2 2 , . 87. + ( 2" 2" %% > 1 8 . (. 1 C . , 1 (. "D 1. . C +(?',A. . E?E $K$)4 ) $%5 :& 4 & > 2 8 - - 7 . ( . . ( V%#WO. 2 N V%`WO C - . %?/E%AV%aWOD6. 4 8 > =. B. (. 1 . ?4'/AV%\"%bW. 2 (. C . B +? A α− -1 C . α− 1 V%]W . > D 7f8 ( 1 C " " ') + 7 "7 D + 7f8 + ? C A &1 8 > ( E ( + . . . 68- α C β ,7 . . E ,7 . "7 (- ( . " C . D > &1 2 I " 1 7 C "7 1 2 (. . 7( > 4 1 > 1 =. B. . ( > " . . . 16 " . C 7 "( Y 6(+7 V%]W d.
(41) ) %%4- @ > @ D 8. . . . . %$. 'bdd$\ 'bcc]%. H, H. H)). H. H . '$#]c]. (. . ). ). SSS . ))0. '$#]bb. '$$aa%. - /E% E% 6 6. )(. '$$aa#. /E% . - E% . '$a%\b. ''. F 2 F 2. . N > 7 . . H C. N > . [ . N > . [ . . ' ( .[. H+. H+. . N > & . ( D . , 2 ' ( F 2 ( 2 2 F 2 ' ( ( 2. , 2 ' (. F 2 ' (. ?A =. \\#$$. ]db$$. `#$$$. `%a$$. ``$$$E`\$$$. . F 2 ' (. N > 7 .' ( ."[ . ,> " @ . . ,6 .F. ,&. )4. H . , 8 . , 8 . . ,6. .C . ' Z . 6 C . . V#%"#c"`\E`dW. V#%"`#E`aW. V#%E##"#\"#cE`%W. V#%"#bE#]W. V#%E#\W. V%cE#%W. !". V#%"a\W. V#%"#\"#c"a%EaaW. V#%E##"#c"a$W. #E',F4. .4E .4E. V#%"#c"\aE\]W. V#%"adE\`W. V#%E##"#ca\EadW &.E. &.E. Y. Y. &.E. .4E. E',F4. E',F4. E',F4. .4E .4E. G N > "G . . ' > . `a]$$$. . F 2 ' ( ( 2. , 2 H E C( F 2 > 2 α β ( 2 , 2 ( 2. . . F 2 ' (. . ba\$$. `$a$$. c\#$$. ``$$$. %a$$$. . . 'a#c\c. '$%\cc. 4'/. . 4 . '$\$b]. ,β. '$]#cc. '`]ca$. ' > . ',. . ,( E > , + C +(. . a#$$$Eaa$$$. . '$#]b`. . ,F'. . F 2 ' ( ' M -+ ( 2. . ,( %EC >. " . . . . $. . ! /3. . * . . ' $. . = . . $; . ) #.
(42) * . E?EE @ O & 6 2 C 7 8N 7 . . +( . ( 8N . . V%]WH6 . A > 6 " 1 . ". 7 ( 1- 2 8 2 N 8 > A > 16 " 2" 7 1 - 8N . . . N . V%]" \cW & = 6 +7 1 7 . . I ( ". C ( " 2 1 . . 8 I ( D V%]"\dW & 6 +7 - " 8 1- . 1 16. - 1 . ?4'/A 4 7 I " ') 8 ( ( #= . E?EE. . V%b"b$W. E .; . & > D ( . . . . 7+7 Vb%W, 7- . . + " C C ( . . = . . Vb#Eb`W4 VbaEb\WO . . . Vb%W 4 ( C . ( " . . . 7 " 7 D. 1 ( 21 > Va\W. , - . . ( % . > 6C . CN D ( . . (8 1 VbbWO B 1/# . + Vb]W %. 1. - >. 7(- 7f8 + ') ' . ( (E > 7 - (8 7f8 + , 7 #. 1. ( 2" ( ( . - >. 7(- - 2. %%.
(43) ) . #. 4 . CN . 16. ?HA" . (. N > 2 ? " ?)(A A"[ ? "1. ?.,A - . 6. ?/E%AA" . ? -. . . /E%A ? + A , %% 7 /E%"7 1 7 . > 1 8 8 & "D N 68" . 8 7 7 C . [ . 1 4. D( 2. + 7[ D Va\W?( %%A %%4 /E%. E?E?E " 1 , > 2 ( 1- . . V%$" bcEbdW & 7 . . /$3. E " 71 6 ( 2 - ( 2. C > ( , C . ') Va"bcW& ') 1 1 B 1 2(. > = B. . 7+ 16 ') . %#" 16 . . ') . > 7 " - 2 27. . E?E?EE 6# & 2 D ') D V%$W D - . - 2 +" = + " 6 %#. B. ( V]%W. B .
(44) * . . $. . ./-! . $ ( . E%c"$#. ( . c$"$b. E%c"$#. *. c]"%#. E%c"$#. + . %$d"%`. E%]"$`. !1. %#b"#$. E%]"$`. $$. %a`"#%. E%]"$`. ! . %b#"%a. E#"$#. 0 0 . %b#"%a. E#"$#. 3. %cc"`$. 1. 1!0 ). #$`"#$. $ . + % 0 . + % . + ( 2!./-! . . $ . -!% ( . . E%"$`. . E$"dc. -!$ . $"dc. . . (! (!4.!$ % . LHH2. #$a"`b #%$"`b ##$"`\. $"dc. . $"dc. + % $$. ##d"%`. $ . %a"$`. (! . #`b"`d. # $ . %\"$%. + . #`c"a%. !(1*. %b"$$. ! . #a%"``. * % . %b"$$. 0 ! . #]#"a]. 4!$ . %b"$b. !45!$ %!46/4-! %!7!$ . #da"`d. . 8 . #c"$%. $ (!) . ,. ]c"d$. . . . E%c"$c. ./-! . , . Δ M /3. -!% . . . $. E``"%$. .!%. . . + . . . Δ M /3. . ?F?. #c"$\. +$$ $ . ``d"`#. #d"$$. $ . `bc"ba. $ . #d"$b. )9! $ . a#b"]`. .:/5:/;:!<. #d"dc. 8)=( &"$ . a`c"``. $ . `%"dd. 8)=*. a\a"``. !(1.*. `#"$$. 8)= . a\b"`a. $ % . `#"$$. " $ . abd"]c. `#"$b. +! . \a%"`$. . . " $ 0! % , ! $ $ . . . ##b"`$. II. (! . \]b"da. a#"$c. "$ %. \d\"bc. aa"$%. (! $ . b`\"%a. ab"$d. )9/)9/)9! $ !;!$ % . \d"$d. )9!4! % $ . ]#"$b. ) %# =. +$$ $ 1 !$ % . . 8. bdd"dc ]b%"`$ ]c`"\a. ') D V#%"]$W. %`.
(45) ) . #. & > 7" 2 N ?''.A" 7 ( > . + . 1 6 >. "7 . . + B - - . > D . (. . . & 8 7+7 > " 7. + 7 (- = . " ( 16 . 7 2. ( 1 > . . 1 - 8. E?EIE 5= & > 87 " 7 D +7 " D - 1 2 8 7 & +7 (. . . 1 7 > " 16 ( C C " 2 7 6 ( (+ C . (. + . . &1 2. = ". 7 . 7 2 1- 2 8 1 . 1 . 2 (. " . 4 . . C . 8 16 7 . ( 2 1 V]#E]aW - 7 `\h > . C V]`W. 8N 2 . -" 6( - 4 . 7 8 7 . + 7 2. ( - 2 D 7 ( >. 8 2 8 7 " > . 6E87 2 (. > 6 E87 & ( 2. 1 1 " . 1. 21 . . %a. . 2 " . " . .
(46) * . E?EIEE # ; E &1 2 > D -7 D . . " " I ( 8 F 16 . 7 1 2 > . 4 . 7 . . ( . . . D . > 7 1 " ( " 1 1 7. . . 7 7 ( - . 2 + V]\W 4 > 87 /E%". - . . 2 ( . 1 2V]bE]cW) D 16 . = 2. ') V]dW 4- - 7 ( 21 > +(7 " 7" 1 . . . " . - ( 7 . 7. - ( 2 V]dW & D 2 - 1,6 V]bEc$W ( . ( . ?)4A? 1 ( . (. 7 ?4A . ( E! Z?.!A 6. A. V]dEc$W 1 7 - . ?7 7 D A"' Z ". H 1 ( ?,&A V]b" c$W . : 1 7 "7( 7 8 . 2. EIE &J+)4) $K$)4 ) $%5 :& 4 & =. 7+7 . C = 1 . 1- 2 ( 2. - 1 7 ,-. (B = 7 . . C > 1 8 - . 4- - . 8 7 . . . ". . 2 1 ( 2 %\.
(47) ) . #. EIEE G O . C# ; ) . " . 1 > 1. >. 1. . - N 48 8 + 7 (+ 7 8N 78 > > 24 8 7 . " -+ . 7 . E U 8 . - ( 2 8N N - 6 & (8 ( 7 1 ( 1 8N " 7 . D + . E 2 C 4 7 2 (2 ). ': . 7 1 ( . 8 16 > 2 . ? . AO ? I A . O 8 $ ?7 ( . 8N . . . E . 2E 2& - 8N . . 1 (A 2. i%db . ? +7A . " . C ( ?#\.A. 4 . N D 6 > 7 D 2 . " 1 ( . > 1 8 . =. B. . N . & > . . "7. D . D1 . . Vc%W . . ( (. Vc#W. . &12 . > VacW. > . >. 16 > . 7 (E D4 . ' 7. . D ( . " C- . H 1 2 . "76 B + " 2 %b. . 1 " . 1 . 1- 2 >. 16. " " . 16 ( = 7 . 4 . . N ) " 16 . ( (. ( .
(48) * . " - ?a .A D 4 " 1 2 1 6 . D Vc%EcaW. D 1- 2" > 1 8 16 ( D . . 8 7 . . EIEE G O "# > ' ( 1 . . 7f C 8 7 7 1 7 . EIEEE 4 ! ( D 1. > D . (8 - " 8 . " (B ( B 2 2 ( . ". 7 ? . (. . C " H. " A > 2 . " D C 7 7 . V%]" c\W 4 ( 1 D . 7. . D . 3 5. EIEEE * " # & ( 2 D 8 =. B. . (B 2 . ," . & . " . 28N . 2 > 2 . ( 1. C ( . 2 . . 1 . N " ( 2 ?A" . ) D 1 1 . 1 V]cW ( 2 D ( 2 > D . ( 2 7 . 2 @ N . ? " A 8 4 . . ( 2 D 7 7- 1I +( " - 2. %].
(49) ) . #. EIEE?E > "# & C . 8 1 2 D . C 4- - . . . " N " . 2 ( 2 > + *. D " C 1 . . . 7 N = 2 6 ?( %#E,A e D . " 7" 7 . ( " " 2 & ( 2 D . C (B 1 . N C 1. . . ?( . ?Y./AA 7 ( 2 1 7. ( 1 - . C ?( %#EA 3 3 . ( . > 1 8 D 3. 3. . 3 3. 3. . 3. . %# ,A C A 4 A4. OA4. O A 4. (. O A . C A ( 2. ( OA ?Y./A . EIEEIE *" O /+*3 & &. > . D 8 7 D ( 2 7. . ) 7 1(C 2 2 . - " ( %c. . . 2 N ( . " . " " 2. ( .
(50) * . ?A1 . 1. ##$. #c$ 1 2 1 B + 1 C 4 ( 2 ( . C ( (. . *" ! = /) *3 1 . > C & ( . ? . 2 . A > 7 C . C 7 & . 1 - . C D . 2. +" " ( . 7 Vc`W *" P "=! & ( . . D . & >. D 2 . C ' 12 1 . . ( . *" Q" /*3 > . . 1 . 8 7. +( 7 7 . E ( . C VcbEccW " 2 ( . 7 1 ( 7 &12 1 -" = " H" . . +( ( . F 1 > ? > D D ( 1 ( 1. (B " . 1 8 . 8A . ?9,.A ( . +( > 1 8 " ( . 1,.. ( . . C . *" Q" ! /)*3 &19,. D 1,." 7 C 7 - ,7. ". 2. 8 ( . > . 7 VcdW 1 6 "8 6 : 6 . . C ( 2 8 > 7 %d.
(51) ) . #. ( . . CN . 2 Vc%Ec#" d$Ed%W & 2 ( . C D D . C 7 (+ + ? = C H - 2.: ) AVcdW& 2 8 " 2. 1 7. C "=. . & C(7 ? H" (B " 7. " A D (- 2. 4 19,. 7 7. . " 1C 8 ?9,A" , ( %` . 7C .#jE9,." " D > 7 .#j . 17 2 2 " @ . 2 H C & ( D 12 > D 7 . ?\$E%$$". 2 #" ( %`A , . - 2 H @I @ 14),7 $# $%./a. . B 7. . D ( . D VcdW O !# ) 2%. ) # . % ) 2%. # ) 2#. . ) 2##$) $\X. \$$ H]\. 4 2.#j -D. ) 2%#$) $\X. % H]\. . 4 2 %.# > " . %`.#jE9,. . *" QC # "# /4 *3 ,7 . 8 . 2 16 C ". " . ( #$. . 2 ( 2 > "= 7D 8 . (C D " " 7 V%$"d#W& 8 . . 7 . ( 2 . D 1 . C 8 4 " .
(52) * . 2 ( D . 21 . . > " ( 1 " D . D . ( 24 . C ". - (C ( 1 . . 2 . C " . . 1 2 > . 1 1 . D 8 7 D . ?AV%$W4 2 1 . Vd`W , ( %a 7C 4. & > ( @ . 7 . ( 4 " D . " 16 . 7 . C ,7 - . . . 2 1 . ( . " D 2 . C . C . VdaEdbW . -" . 2 . " 78 2 1 > 4. D . 8 2 D ( " 8 C 7 6(7 ( . C . ( VdbW . ) ? A. . 8 . %#`a\b. *5%. . %a4. . EIEEFE " /6 3 4 1 7. . 2 . ( 7 1 . 8 2" 8 C . #%.
(53) #. ) . C C ( & . 1C ,7 B 1. . 1 7 B 8 " = C " . C 1 C V%]W4 71 ( - 2" . ? ( . A ? ( "F4A& C 8 . 7 . D C > . C V%]W4 7 I " N ? D 2 " ( ?',F4AA" 7 2 7 " C 1. . . 8 ?( %\E,A, . . (8 ( 7 7( 12 C. ( 8 . 7 . 2 - 2. E 4 2 D . 2 @ " / . 7. . . 2( ?( %\EA) D 2 8 . 27 . " - "S ?YA"7. . . C f . . . ,A. . ' 2%Æ #$$$$$. . . . E. . 2 2 . . E. A. j. ' 2#Æ %%b#\$ ' 2`Æ d]a$$ ' 2aÆ bb#$$ ' 2\Æ a\$$$ ' 2bÆ `%$$$ ' 2]Æ #%\$$ ' 2cÆ %aa$$. . j ' . %\,4 7 E',F44 ( ?A . & E',F4D . ',F4 7 1 (- ( ?A . 2 ,-+" > ##. . .
(54) * . 1 1 7. . ( " . > . . 2 - ( 2" I " . . " 1 ( ?94 A" . 8 C C 4 7 " . C . . ( . 2 1 ( 7. H . H 4 . C 3 1 (7 5? A 2 7 - 8 " 7 - . 2. " ! /1$6 3 & #E',F4 . > . 2 > . H . 194 ',F4 4 . ( 2 8 = B. 4 . 2 > . . . ',F4" ?( %bA " > . . 8 D ( . . ? . A. . . . . 9. %b4 ( #E',F41 - > . EIEE0E G O . O O . & 8 7 7+7 - 1 > . +( Vd]EdcW ,7 8 7 . . " 7 ( 7 . . > C - , . . #`.
(55) ) . #. . 2 ". 6. -4 I : ". 2 ( 2 1. " -+ 16 . 2 ) 7. ( 6. . > 8 7 7+7 2 > , D ( 1 ( ?%a#aA". 2 . 7+7 ). . 8 7 . . #. &1= 1 7 (. ?9,.A" 7 2. 8 D ( >. 2 -. - D "1 . " 7 . E. D . . 7 . > " - . D Q. 8 1 8 ". 1 8 . -. . E. . . . !# > / +)43. &14&9,D 8 7+ . 1 . 1- 2 2. ( . E. 1 . 1 7. (+ E7+ " 2. 2 ( 8 VddW H 1 1 1 1. +( 1. . 7 -C. 7 C ' " 1 2 7 C 4 ( . 7 " 1 C 2 1 C . + . ( 8 &14&9, D . . . 1 C + Va\W" D I ( 8 C V%$$E%$%W A /A3 e 8 C . 2 2 > & . . 2 > = B. . > " . N " ( #a. (- . E',F4 . " + . 7 - > .
(56) * . 1 8 ? . A ( . ?. 1. A 7 D . 1 C . . 7 . ( 8 4 Y 1 . 8 ( )4 6. V%$#W. EIE?E G O # # Q # . C D 1 - 8 > 7- . . 2 8 7 . " . 2 1 2 8 2. 4 12 8 7 16. . (+ E7+7 ". . 1 C = 1 . ) 16 1 " = " 1. . " . C. " - " 2". C 2" -+ . . ' 7 ( +7 1 2?H'&.A1 ( . N ?.4A" 1 . ?A" 2 C . . EIE?EE *" O Q # /@$+*3 . 6 2 . ?%a#aA" &. 6 . 2 ( 2 +7 - " . . . + . + " 1H'&. 1. C " 2" . 1 . . 8 ". , . . D . . . V%$W , D D " . 6 8 . 2 8 . 1 C 1 1H'&. (. ( ( . 1. C " - - . C 8 > V%$W ( . +7 ( ?0'&.A" 4." 94." ( +7 1 2 6(+ ?H9&9.A,., 1 = 16 78 1 ( . > 2%a#a?4."94.,.A. . . . #\.