Định lý cơ bản thứ hai với bội cắt cụt và tập xác định duy nhất





 !
"#$%&'(
 
   
 !"#
)*+,,-


 !"#$% &''((()*
'+(,
  
 
 
-)./01(2345)4 "
 62
3 789:; *<=>?<;;@
A!!)5) 6B)C
6 

 
             
   ! " "#  $ % & '  (   )* ++,
- .  /   0 1 '  )* ++2   
# 1 3   4 . ' 5662 7    8
9 : 6;   < ! )  '  (,  
     "! = >    ? @ ' A "2 B C
?2   D : "!     '    . D

, E  '       ? @, -  ? @ :
&2    ) ' 4 : F""GH"2  & >
I    J  

 '   .  K  J 


  ' 


, -  ? @ :  L I   ) >@
$  " "# & '  2   L 6K 9 6A )
M > I    J  K   2    
# ;2   C& CN2 ,,,,
OB I    P 8 A "2 8 J " )42 1 ' K
Q )4 R"2    J 2 

  )4  CA @ 
9 D P , S & 9 ! D     ( J 
TM D :    9 2 :  CU   
   CA N .     A D , -1 D @ )L K
  4 . ' 5, V 4   0 WXX, Y9 "2 I
 ;  L         CA N . 
D :  : 6; '   8   < ! ) 
'  (  L A %   Z  "! >  ' 9
  ( D  K,
YK P  N . )4 "   B     


  "D [ 




\  B = >  

2 0 WXX2
]
5, V : M          
       
      

 






 


O >@ D ' 5, V   6A -  ? @ :  K
 # ;  P  N . /   

 )4 " 
 B )  K  "D [ \  B = >, V4 . 
' 4     ": > (2 8 \   K D
: K  I  L       G D : "!
    '  CA  . G    (  ^ 
_, V ) >@ D : '   @ 9 

   P  1  `    & 9M
, + 6!  6A -  ? @ :  K ; D   "D
J   aJ 6 b2 3   ` > I    J
 GV K   C& CN2      
# ;, E/ 8 "   ) >@ 9 > I " ),
], D :  : 6; '   GV 
 & 9 )  '  (2 [ A2 D : "! " 
'  P  A "2 C 6!  ` C  6 &  
CA  .2 ,,,,
5K D : : & c  Z  "! >  ' & 9
  (    9 ) >@ " "#2 [ A2 d, e, )2
F, Yf2 S, g2 h, h, E2 i, hjj2 5, 5, O2 F, S, k2
k, l2 k, V2  , 0 ]mmn2 S, g c :   6A
-  ? @ :   P  N . )4 "  A
" )  K  "D J  , i1 2 4 c \  ) >@
8  P  N . "  A ", 0 ]mmo2 p, S, q
 r, 5, V :   > I    J  

 '
P  N .     

 K     # ;
X



 

  P  (  "D J   



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B = >, E ) >@ 2   @ K N  "! s A '
N "  # ;2  B  ; L    8, - K ;
D 6 2 0 ]mmX2 S, g  E, q, k :   6A
-  ? @ :  K  # ;  P  N . / 
 
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 )  K  "D [ 6 , i1 2 h, h, E 
l, h, p C CU A ) >@ ' gGk      
A ?2 i, hjj  E, Y, E    > I    J
 

 '  CA N .   

 
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 K   
 # ; 
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 
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  P  "D J 6 ,
7  D : > I " ) '     CA N
.     > (2 8   "t  6   9
  ( >  D :, E     
  . :2  c   ) >@ = M   !" #
  $ % &  ' ( ) * + , - . 

, 0 WXX2 5, V c \  ) >@ D  P  N
. :2 4 N  3M   !" #  /0  1
% + ! " !" 2 " 3   4 ) 5 6 7 8
92  :) + /3 :)  , Y9 "2 & 9   ( c
C CU & 9 ? !  P   "D J )4  B
 ; D 6 , V ) >@ D : 9 " ) '  CA
N . # 9 K  @  > ( ' F, ijj" J 
 0 Wu]  7, ljj  0 WuW, i@  ljj 
S, g @ > 0 ]mmn2 @  ijj"   v   &
9 \,
S : 6; > ( ' -  ? @ :  K  # ;
   GV aw    b 
D : "! C  '  CA  . aw    .b
4 > @  '   9 `   A 1 t, Y& 9
n
 w  Z "! >  ' 9   (M g, 2
5, xf2 , l2 5, 5, O2 i, hjj2 h, h, E2 V, V, q2
R, 72 k, V2 S, g  9   ( ), 0 W]y2
g,  : M ;#  $ % & )   ,#
< 
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
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
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 %   = 0 Wuo2 5, xf
\  ) >@  '    CA  .  )4
 CA @ :2  & s A  ` C  6 & )L @ 

s   "D [ \  B = >  (   CA  .
: )4 "   B, 0 WzX2 , l :  
) >@ 9 "! C  6 & '  CA  . )4 " 
 B \ @  '  (   A  "D [2 & 9 8
 5, xf D : A 0 WWz, 0 ]mmy2 i, hjj 
E, Y, E C CU & 9 ? !  P  "D [ 6 ,
0 ]mm]  ]mmX2 Y, 5, R  h, p, S    " 9 )I
A " ' ` C  6 & )4 )L     CA N
.  )4  CA @ :  )4 R"  P 
"D [  , 0 ]mmz2 3 I "t 6; -  ? @ :
 K  # ;  P  N . ' RGF2 h)
 g c :    6 &  P  N . 
P  "D J, EP  1    @ `   I
D :  & 9M .  J  ' ` C  6 & 
 6A ` C  6 & K " 1 t B & 8 L, VZ  32
1    :  '  ) >@ 9 ` C  6 & 9
6!   6A -  ? @ :  K  # ;,
 `2 I  ;  L   GV2 J I
D :  6A -  ? @ :  K  # ;2  ! "!
1 2  Z    ? "\ > ( L D : > I
" )2 "! "   ` C  6 &   CA N .,
5I 2 & 9  L   GV  D :
o
: 6; '        ) ( )  c 
  >  A %2 # 9 K  4 . ' & 9
  (    KM g, 2 5, V2 S, g2
F,Yf2h,h,E2k,V25,5,O2i,hjj2F,S,k2
R, 72 E, E, 5, R  9   ( ),
l!!(9M          ! " #$
%&  ' () '  @ `   w 3  ; 

L D   9  Z '   GV  ` C
 6 &   CA N ., E `  2 Z 4
D :  & 9 ? @  "M
b V:   " 6A -  ? @ :  K  # ;
 P  N . )  K  "D [ J "D J
  P M ; D    ; D 6 ,
]b -   " ) >@ K 9 > I " )  > I "
)  # ;  P  N . D   ,
Xb -   " 9 )I A " ' ` C  6 & )4
)L   P  N .  P  "D J,
E D :2 Z 4 "t 6;  4 ; '  " M
G       GV,
G S " ) >@  ){ ` ' . ( A "    ",
G   ` C  6 &     .   CA
N . :,
`     X ? | K 1 S\ 12 1 O
`  6 ;  E I  )@,
V? M -  ? @ :  K  # ;  P 
N .  )4  CA @,
V? ]M -  ? @ :  K  # ;  P 
N .   A  B,
V? XM E` C  6 &  P  N .,
y
*+ ,
          !
- *.+ -+ / 0 "- 12+
+ %3 
E ?  Z 4 . T  " ) >@ D : 9
 6A -  ? @ :  K  # ;  P  N
.  )4  CA @ )  K  "D J   P

M P  N . D   D ,  6 ' ?
 6! D    }~  }]~, EK 2 Z 4 .  
" ) : ? @        GV,
,4,  56 1   
V  N .     2 L 

   (  )4
L   '   s A   N .  )4 I D
  ` `  ' 

"   ` `  8    L
6• 6K 6A
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
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 ,YK
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  
i@ "t      .2 ) 8  
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 N . )4 8 )4 L , l : 
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(  )4
L   '   
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 )4 L   ' 
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2 

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(  ! L
  '   
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 )4 L   ' 
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,
 +7 ,4,4,4 S ) > 1 % ?   
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 #! @ 4
 /0  1 %  )4  CA @ 
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  
<   CA
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  
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
 8 
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         D D ,
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 
   : .   (  /0   ,
 +7 ,4,484 -P  N .     
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! " !" 2  @ '  :    A  B !
"!  8 ' )4  CA @ 
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  2 3
  P   A2 
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 
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  

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 2 3   P   A,
i@ "t     
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   P  N .    
"D J `   

 C  \  : 1 & ,
 +7 ,4,4=4 l
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
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 (   !"  F G ' P   )  K "D J
2  8    " D 6?,
  ,4,4>4 a-  ? @ : &b H( I     

  
/0  1 %     5 .   9 
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   %    J A/- #
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 
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
9          =
OB I 
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  
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  I (  1 &  
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, V  A
A " CA @ 8 " 9 3 2      ( s  "D J
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  
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2  8 

C  \  : 1
& 
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 
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
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, YK " D 6?   2
  < ) I (  "D J \  B = >  "M
 +7 ,4,4?4 5(   "D J  

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D :)  K  A       K (  (  
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 ( 2  4 8
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!  
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,    2  8 (  \B=>aK
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,48           ! - *.+ -+
/ 0 $
E 1  Z 4 .   6A -  ? @ : 
K  # ;  P  N . /   
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 "D J \  B = >,
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E 1  Z 4 .   ) >@ D : ' Z
4 9 > I " )  # ;  P  N . /  
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V  D  D    < \ € { /
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*+ 8
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- *.+ -+ / 0 "-  3$
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   }X~  }y~,
84, E*.+ F$ G! C " & 5C GH 6 
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    = H( I 
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O >@ "% ! "! A ?   8 L K    )4 ;

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6 , E 1  Z 4 "% . T  ) >@ 9 -
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5 -  X,,]  X,,X "  ' Z 4 "%   9
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  94,484 E     
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# %I 94,4:4   & "  "D J ' ` C  6 &
    D ;   N "  # ; '   
 # ;  -  ,], D "  "D J   v ‚
) K, -L C 6!   ` C  6 & 8 " "D J B
?2  1 @ .  J  ?  N "  # ;  

-  ? @ : ,
948 E*.+ F$ & 5C GH N+ #   D L+ M&
6  $I$ O+ P-5
E  Z 4 "%    " 9 )I A " L  ( K
" "D J B ?  ` C  6 &   P  N
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9 )I   "D J  M  "D J @ \  B = >
 K U Z Y",
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