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O
Q
e
1
e
n
e
1
e
n
V
n
(π)
A
n
= π
M = [x]
m π
m
(V
m+1
)
[x] m π
m
(V
m+1
)
x V
m+1
m
π
m
(V
m+1
) [e
α
]
V
m+1
{e
α
}
V
m+1
= L{a
1
, . . . , a
m+1
} {a
A
} A = 1, . . . , m + 1
V
m+1
[x] ∈ π
m
(V
m+1
) ⇐⇒
x = t
1
a
1
+. . . t
m+1
a
m+1
= t
A
a
A
⇐⇒ x
α
= t
1
a
α
1
+. . . t
m+1
a
α
m+1
= t
A
a
α
A
.
m
π
m
(V
m+1
) [t
1
: . . . : t
m+1
] = [t
A
]
π
m
(V
m+1
) [a
A
] A = 1, . . . , m + 1
Ann(V
m+1
) = L{
e
b
1
, . . . ,
e
b
n−m
} ⊂ V
∗
m+1
{
e
b
a
} a = 1, . . . , n − m
Ann(V
m+1
) [x] ∈ π
m
(V
m+1
) ⇐⇒
e
b
a
(x) = 0, a = 1, . . . , n − m, ⇐⇒ b
a
α
x
α
= 0, a = 1, . . . , n − m,
b
a
α
e
b
a
{e
α
}
[x
α
] m π
m
(V
m+1
)
P
n
[e
α
] [e
α
0
]
{e
α
} {e
α
0
}
V
n+1
An = π
en
Q M = [x]
e1
en
O Vn (π)
e1
Ý^Û ÒX\Y\]® m¯W[] πm(Vm+1) ^
-)15 [x] .30,5D6*07 m .6-/1-/70 πm(Vm+1) 7-9D5 0 7-6>1- 7-9D5 1-9D5
B*17-3 x .30,5D6*07 .-D.3-/735,/7B2 Vm+1 < -¨7-:2 235B,*,08 m .6-/
1-/70 πm(Vm+1) B .3-*170B,AC 1--3D0,575C -.3*D*68*:AC 3*.*3-: [eα]
0:*7 7-7 * B0D )7- 0 235B,*,08 .-D.3-/735,/7B5 Vm+1 B +5E0/* {eα} <
< /60 V = L{a , . . . , a } 9D* {a } A = 1, . . . , m + 1 F +5E0/
B Vm+1 7- [x] ∈ πm(Vm+1) ⇐⇒
m+1 1 m+1 A
x = t1 a1 +. . . tm+1 am+1 = tA aA ⇐⇒ xα = t1 aα1 +. . . tm+1 aαm+1 = tA aαA .
º
35B,*,08 º ,5EAB57/8 ejfjdmifasmhvada 235B,*,08:0 m .6-/1-/70
πm (Vm+1 ) < =0/65 [t1 : . . . : tm+1 ] = [tA ] F .3-*170B,A* 1--3D0,57A B
πm (Vm+1 ) -7,-/07*6>,- .3-*170B,-9- 3*.*35 [aA ] A = 1, . . . , m + 1 <
G< /60 Ann(Vm+1) = L{be1, . . . , ben−m} ⊂ Vm+1
∗
9D* {bea} a = 1, . . . , n − m
F +5E0/ B Ann(Vm+1) 7- [x] ∈ πm(Vm+1) ⇐⇒
e a (x) = 0, a = 1, . . . , n − m, ⇐⇒ ba xα = 0, a = 1, . . . , n − m, ºG
b α
9D* baα F 1--3D0,57A 60,*,- -3:A bea -7,-/07*6>,- +5E0/5 {eα} < 510:
-+35E-: B .3-*170B,AC 1--3D0,575C [xα] m .6-/1-/7> πm(Vm+1) E5D5*7/8
/0/7*:- -D,-3-D,AC 235B,*,0 ºG<
Ý^Ü XYX¤\]® WXY]\× XZ]\ Pn ^
2/7> D5,A DB5 .3-*170B,AC 3*.*35 [eα] 0 [eα ] < ì5E0/A {eα} 0 {eα } 5//-
½003-B5,,-9- B*17-3,-9- .3-/735,/7B5 Vn+1 -.3*D*680* ¨70 3*.*3A
0 0
Ï
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