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ホモロジー群・基本群
ホモロジー群
Section titled “ホモロジー群”
H
i
=
Z
i
/
B
i
H_i = Z_i / B_i
H
i
=
Z
i
/
B
i
基本群
Section titled “基本群”
π
1
(
X
,
x
)
=
Ω
(
X
,
x
)
/
∼
\pi_1(X,x) = \Omega(X,x) / {\sim}
π
1
(
X
,
x
)
=
Ω
(
X
,
x
)
/
∼
ベッチ数
Section titled “ベッチ数”
b
i
=
rank
H
i
b_i = \operatorname{rank} H_i
b
i
=
rank
H
i