Effective Constructive Algebraic Topology - Institut Fourier
Effective Constructive Algebraic Topology - Institut Fourier
Effective Constructive Algebraic Topology - Institut Fourier
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Example: X =<br />
X1<br />
X0<br />
D 1 1<br />
• D2 f 1<br />
2 1<br />
D 1 2<br />
Cellular complex = {0 ←− Z d1 2 d2<br />
←− Z ←− Z ←− 0}<br />
with d1 = [0 0] and d2 =<br />
2<br />
2<br />
<br />
⇒ H∗ = {Z, Z2 + Z, 0}<br />
12
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