Аналитическая геометрия. Часть III. Многомерные пространства. Гиперповерхности второго порядка. Шурыгин В.В. - 48 стр.

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det(a
ij
) 6= 0 rank ϕ = n
Φ C
Φ
det(a
ij
) 6= 0.
Φ
m m = n rank ϕ
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F
i
(x
k
0
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i
t + F (x
k
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`
Φ
` Φ =
A
C
n
F
i
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k
0
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i
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k
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k
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a = {1; 0; 1}
Φ x
2
+ y
2
z
2
= 1 `
1
x = z + 1, y = 0
a (1; 0; 0) Φ
`
2
x = z, y = 0 a
Φ `
3
x = z, y = 1 a
Φ
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1-9D5 det(aij ) 6= 0  7- */7> 1-9D5 rank ϕ = n < ¨7-: /62)5* 90.*3.-B*3C
,-/7> Φ 0:**7 *D0,/7B*,,A” ½*,73 C <
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                                 det(aij ) 6= 0.
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                           Fi (xk0 )v i t + F (xk0 ) = 0.                  •¶¶‹
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+- 0:**7 -D,2 -+ˆ2‡ 7-)12 / 90.*3.-B*3C,-/7>‡ Φ •¨7-7 /62)5” ,2“,-
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/70 /-B.5D5‡7 0 .38:58 vjhjmiht 90.*3.-B*3C,-/70‹ 60+- ` ∩ Φ = ∅ •,*7
,0 -D,-” -+ˆ*” 7-)10 B ACn  ,0 B*ˆ*/7B*,,-”  ,0 1-:.6*1/,-” Œ ¨7-7 /62
)5” 0:**7 :*/7-  1-9D5 F (xk )vi = 0  5 F (xk ) 6= 0‹ 60+- .38:58 ` ½*601-:
6*“07 ,5 90.*3.-B*3C,-/70 Φ •.30 Fi(xk0 )vi = F (xk0 ) = 0‹<
                         i 0                       0


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    ŽX]YX^ 5.35B6*,0* a = {1; 0; 1} 8B68*7/8 5/0:.7-70)*/10: D68 -D
,-.-6-/7,-9- 90.*3+-6-0D5 Φ ~ x2 + y2 − z2 = 1 < ’38:58 `1 ~ x = z + 1, y = 0
/ ,5.35B68‡ˆ0: B*17-3-: a 0:**7 -D,2 -+ˆ2‡ 7-)12 (1; 0; 0) Φ Œ .38:58
`2 ~ x = z, y = 0 / ,5.35B68‡ˆ0: B*17-3-: a ,* 0:**7 ,0 -D,-” -+ˆ*”
7-)10 Φ Œ .38:58 `3 ~ x = z, y = 1 / ,5.35B68‡ˆ0: B*17-3-: a ½*601-:
6*“07 ,5 90.*3+-6-0D* Φ <



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