R G '* ! " '= FQ 6 F? - ` ] = 6 - 2 ] +] ! 0 %a)+ : ( : 0: ! " : ( : 0: I 'I '* ! " b /
Trang 5.,N- C Wƒ, x, → , x, C E N,x.NE‡ NE C !, → NE‡ N,.! C N.!
Trang 6C r , N, N, N N E
r r
Trang 7H: E H 8 H
V H ! H: E H
^ f j
Trang 11X t, t
X t, t
Trang 143434
Trang 15• 0 H 0 @ j F [ = / T H 0 + + J F.x, N,x )+ 7 [ U / ^ %5 B
.NL•C N,x.NE.xx C xN x $ → NL• C ,.xE
Trang 16N
/
Trang 17C sy _ ": >7 : „ ; 8J 'a % %* xN , r xN , % B 7 N,x )+ x, '[ 8*
i !F , $ 8J B
.x, C xN , → xE ↓ C N,x.x, C r xN , → r xE ↓ C N,x
,
.x 3 P ⇒
, x
M>3 XT I !F 3 ; 7 0 )+ 3 ! 9 @ A : G /
j f /
Trang 18K .^^• P S> H '[ 'O ' I # F P " F S> H ' J %& ^^•
%F A 'I 8 3 { > F > ' > π F 'I $ 8$ > /
Trang 23[ob apM Ur )=u^ vM= " '( " '
[ob apM w xb qy) azZ )=u^ vM= " 89 u " 89 uu " 89 uuu/
A ? ‚ Š ' " H !+ t K P " %% " % ! !+
\ # #$# v"! ‚ Š
Trang 24" '( A /
Trang 25( ^ H : 7 A ! @ N x, S H • ” " )+ )9 3 ' " _ ": 0 H H > !
J > ! P _ " 8 '< a 3 'e : 7 A 4 8? /( ^ H 87 + ! " ! @ B ” " S HC N x,
8 U " 89 ) " 89 , 8? 0 !# >7 : „ ' " > ( " ; x
0 %5 ) % %* xEƒ%% NE ‡ 3 # : 7 A 0 8F J >7 : „ ' !+'H )+ " ' !+ " 89 H : 7 A 0 ( ] ( 'H /
Op
→
8Zp 3 '[ # i ( A N x 0 %5 ' " ) ! F [ F N, J I A xN)+ xxN / f @ A !+ Nx ” xxN M & H ' + 8 U ! 9 /
!?s •
Trang 276 6
E.xxN C ,x↓C ,N,x N, C Nx C , xN , → N
, C xxN C ,x↓C ,N,x
Trang 36O
Trang 39N ‡ N ‡ •.N,ŽV.xxN → N ‡ •.N,ŽV.x C N,x
: 7 A & F 0 : ! :H: / 0 : ! :H: 3 ": ) F 0 ! F : /