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α
−1
(π
0
k
) 6= ∅
M
0
∈ α
−1
(π
0
k
)
α
−1
(π
0
k
) =
= {M
0
, bα
−1
(L
0
k
)}
α
−1
(A
0
m
) = A
n
M
0
∈ α(A
n
) α
−1
(M
0
) ⊂ A
n
α : A
n
→ A
0
m
β : A
0
m
→ A
00
k
β ◦ α : A
n
→ A
00
k
[
β ◦ α =
b
β ◦ bα
α : A
n
→ A
0
m
α (
A
0
m
α : A
n
→ A
0
m
bα : V
n
→ V
0
m
V
0
m
n = m α
−1
: A
0
m
→ A
n
h : A
n
3 M 7→ {x
i
M
} ∈ R
n
M
{O; e
i
} A
n
α : A
n
→ A
0
m
{O; e
i
} A
n
M ∈ A
n
r
M
=
−−→
OM = x
i
e
i
O
0
= α(O) M
0
= α(M)
−−−→
O
0
M
0
= bα(
−−→
OM) = bα(x
i
e
i
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i
bα(e
i
).
O
e
2
e
3
e
1
α
O
0
bα(e
1
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bα(e
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bα(e
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M
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O
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i
e
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i
e
0
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= bα(e
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α {e
0
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£¤Y[¥^ /60 α−1(π0 ) 6= ∅ 0 M ∈ α−1(π0 ) 7- α−1(π0 ) = k 0 k k b (L )} < = {M0 , α −1 0 7:*70: )k 5/7,A* /62)50 ¨7-9- .3*D6-*,08~ α−1(A0 ) = A G */60 .6-/1-/7> M 0 ∈ α(An ) 7- α−1 (M 0 ) ⊂ An F m n < XYZ[¡Y\]Y^ }hi α : A → A0 a β : A0 → A00 j``abbcm gig|p fjymbat ¢gxnj vgdeglaat β ◦ α : An → A00k j``abbgm gig|fjymbam n m m k £¤Y[¥^ )*B0D,- β[ b< ◦ α = βb ◦ α VWXYZY[Y\]Y^ _``abbgm gig|fjymbam α : A → A0 bjlckjmiht algp dgf`aldgd j``abbcr efghifjbhikw mhoa α |amvat ( kljadbg gnbgp n m lbjsbgm gig|fjymbam bj khm efghifjbhikg A0m /60 α : A → A0 F 0E-:-30E: 7- αb : V → V0 F BE50:,- -D,-E,5) ,-* -7-+35*,0* ,5mB/* .3-/735,/7B- Vm0 7- */7> 0E-:-3 n n m 0E: B*17-3,AC .3-/735,/7B < 7/D5 /6*D2*7 )7- n = m < ¨7-: /62)5* α−1 : A0m → An F 7-* 0E-:-30E: 50,,AC .3-/735,/7B < )5/7,-/70 /--7B*7/7B0* ) h : An 3 M 7→ {xiM } ∈ Rn -7,-/8** 7- 1* M ,5+-3 ** 1--3D0,57 -7,- /07*6>,- 3*.*35 {O; ei} B An F 0E-:-30E: 50,,AC .3-/735,/7B < Ó]\\Y X¡Y\]® XZ]\×^ 2/7> α : A → A0 F 50, ,-* -7-+35*,0* {O; ei} F 3*.*3 B An < /8158 7-)15 M ∈ An -.3*D*68*7/8 n m /B-0: 35D02/ B*17-3-: rM = − OM = xi ei < 2/7> O0 = α(O) 0 M 0 = α(M ) < −→ :**:~ −−0−→0 −−→ OM =α b(xi ei ) = xi α b(OM ) = α b(ei ). e3 α b(e3 ) α O α b(e2 ) e2 O0 α b(e1 ) e1 510: -+35E-: D68 7-9- )7-+A .-62)07> 7-)12 M 0 = α(M ) ,5D- -7 6-07> -7 7-)10 O0 = α(O) B*17-3 xie0i 9D* e0i = αb(ei) < )5/7,-: /62)5* 1-9D5 α F 0E-:-30E: {e0 } F +5E0/ B V0 < 3*E26> 757* .-62)5*: /6*D2** i n ©
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